If you are dealing with unplayable lag in Galaxy Grove’s 1.0 release, the most effective CPU framerate fix Town to City requires lowering the visible citizen count and disabling volumetric smoke in the graphics settings. Because the game relies heavily on single-core processing to simulate complex pathfinding in densely populated maps like Fontebrac and Rocemarée, brute-forcing it with a high-end RTX 4090 won't work if your processor is bottlenecked. The May 2026 Tourism update introduced beautiful 19th-century Mediterranean mechanics, but it also brought severe performance drops. Below is the definitive guide to stabilizing your coastal metropolis.
Why You Need a CPU Framerate Fix Town to City in the 1.0 Update
When Town to City left Early Access on May 26, 2026, publisher Kwalee and developer Galaxy Grove delivered a massive 1.0 update. It introduced the stunning Rocemarée coastal map, intricate tourism mechanics, hotels, and the new Bourgeoisie class. However, as players transitioned their sprawling settlements from Early Access or started fresh in Rocemarée, a glaring issue emerged: catastrophic frame drops.
Unlike traditional grid-based city builders, Town to City uses a completely gridless placement system. While this allows for organic, winding 19th-century Mediterranean streets, it creates an absolute nightmare for your CPU's pathfinding calculations. Every time you place a new warehouse or production building, the game undergoes a massive AI and UI restructuring. The engine has to dynamically recalculate the navmesh for hundreds of independent citizens.
The performance degradation becomes highly noticeable once your town surpasses 1,000 citizens. Players on the Steam forums and Reddit's r/TownToCityGame have reported that even with an Intel Core i9-14900HX or a Ryzen 9 7950X, framerates can plummet from a buttery 144 FPS down to a stuttering 15 FPS. The issue is exacerbated by specific in-game triggers:
- Vacant Employment Loops: When production buildings have vacant spots, the AI continuously polls for available workers, creating a heavy CPU loop.
- Train Station Bottlenecks: Citizens standing at the train station waiting to be placed into housing trigger constant proximity and pathing checks.
- Terraforming Spikes: Using the terraforming tool forces real-time terrain and foundation recalculations, frequently dropping the game to 5 FPS.
If you are experiencing these exact symptoms, you are running into an engine-level bottleneck. Implementing a proper CPU framerate fix Town to City is the only way to restore playability until the developers release further optimization patches.
Analysis Report Poster: Town to City CPU Bottleneck Metrics
Understanding the Bourgeoisie and Tourism Simulation Load
The May 2026 release didn't just add a new map; it fundamentally altered the game's simulation economy. The introduction of the Bourgeoisie class and the tourism mechanics added layers of hidden calculations. Tourists arrive via train or ship and require dynamic tour routes between hotels, monuments, and beaches. Unlike regular citizens who have fixed daily routines—moving predictably from home to work to the market—tourists constantly re-evaluate their destinations based on the scenic value of the routes you build.
When you design a scenic route along the Mediterranean coast, the CPU must calculate the attractiveness score of every voxel along that path in real-time. If you have multiple luxury resorts and boutique stays operating simultaneously, the overlapping tour routes create an exponential increase in pathfinding queries. This is why a town that ran perfectly at 60 FPS in Early Access suddenly crawls at 20 FPS in version 1.0. The engine is simply overwhelmed by the leisure calculations of your virtual vacationers.
Step-by-Step CPU Framerate Fix Town to City Settings
To eliminate the stuttering, you need to relieve the burden on your processor's primary core. Adjusting GPU-bound settings like texture resolution or shadows won't help if the engine is choking on simulation logic. Here is the exact sequence of in-game adjustments required to stabilize your framerate.
1. Lower the Visible Citizen Count
This is the single most impactful change you can make. Town to City features a setting that decouples the visual rendering of citizens from the background simulation math. By lowering the "Visible Citizens" slider to Medium or Low, the game still calculates the economic output and needs of your 1,500 residents, but it stops forcing the CPU to send draw calls for every single person walking to the market. If your town of Belvau is stuttering during the morning commute, this slider is your immediate salvation.
2. Disable Volumetric Smoke
The 19th-century aesthetic is charming, but it comes with a massive hidden cost. Nearly every house, farmhouse, and industrial building in the game emits volumetric smoke from its chimney. Calculating the physics and wind dispersion for hundreds of active smoke plumes is incredibly taxing. Turning off Volumetric Smoke in the graphics menu provides an instant 15–20% boost to your framerate in densely packed residential districts.
Infographic: Step-by-step CPU framerate fix Town to City settings for PC.
3. Minimize UI Clutter
When managing a large metropolis like Fontebrac, the screen fills with resource icons, happiness indicators, and employment warnings. The game's UI layer is surprisingly resource-intensive. Disabling visual UI clutter for minor notifications prevents the game from constantly updating screen-space coordinates for hundreds of floating icons.
4. Avoid Real-Time Terraforming While Unpaused
The 1.0 update introduced severe GPU and CPU spikes associated with the terraforming tools. If you need to flatten land for a new luxury resort or sculpt a beach for tourism decorations, pause the game first. Altering terrain while the simulation is running forces the engine to simultaneously update the navmesh and calculate citizen pathing over shifting ground, which is a guaranteed recipe for a crash or a severe frame-time spike.
Advanced Tweaks: The Ultimate CPU Framerate Fix Town to City
If you have applied the in-game settings and are still experiencing micro-stutters when tourists arrive at your boutique hotels, you need to optimize how Windows handles the game's executable.
Force CPU Affinity (Process Lasso)
Town to City does not currently distribute its simulation load evenly across multiple cores. It relies heavily on a single primary thread. If you are using a modern Intel processor with a hybrid architecture (like the Core i9-13900K or i9-14900K), Windows may mistakenly assign the game's heavy pathfinding logic to an Efficiency Core (E-core) rather than a Performance Core (P-core). Using a program like Process Lasso to restrict the TownToCity.exe process exclusively to your P-cores prevents these scheduling errors. This ensures the game always has access to your processor's highest clock speeds.
Annotated Diagram: Anatomy of CPU-heavy districts in Fontebrac
Clear Your NVIDIA/AMD Shader Cache
A common issue reported after downloading the May 26 Tourism update is corrupted shader caches causing massive hitches when panning the camera over new biomes. To fix this:
- Open your NVIDIA Control Panel.
- Navigate to Manage 3D Settings.
- Turn the Shader Cache Size to "Disabled", apply, and restart your PC.
- Go to
%localappdata%\NVIDIA\DXCacheand delete all files. - Re-enable the Shader Cache Size to "Driver Default". This forces the game to recompile clean shaders for the Rocemarée map, eliminating traversal stutters.
Cap Your Framerate and Enable V-Sync
Because city builders do not require twitch-reflex reaction times, letting your GPU render 200 FPS in empty menus only generates excess heat. Cap your framerate to 60 FPS (or even 45 FPS for a cozy, cinematic feel) via the NVIDIA Control Panel or AMD Adrenalin. This leaves overhead room for your CPU to process sudden spikes in simulation logic—such as a train arriving with 50 new residents—without causing a jarring frame-time spike.
Hardware Reality: Which Processors Struggle in Fontebrac and Belvau?
It is important to understand that the performance issues in Town to City are largely a software optimization problem, not necessarily a failing of your hardware. However, certain architectures handle the game's unoptimized 1.0 code better than others.
High-End CPUs (Ryzen 7 7800X3D, Intel i9-14900K) Processors with massive amounts of L3 cache, like AMD's X3D line, naturally brute-force their way through the unoptimized navmesh calculations better than standard chips. Even so, these top-tier CPUs will still see utilization spikes into the upper 80°C range when placing a warehouse in a fully developed Belvau map.
Mid-Range CPUs (Intel i5-13600K, Ryzen 5 5600X) This is where the stuttering becomes highly disruptive. Without applying the settings outlined above, players in this bracket will experience severe freezing when the morning cycle begins and citizens leave their homes. Limiting the visible citizen count is mandatory for this tier.
Comic Grid: Hardware reality and thermal throttling in Town to City
Gaming Laptops (Intel Core i7-12700H, Ryzen 9 6900HX) Laptop users face a double-edged sword: the game's heavy CPU demand causes thermal throttling, which in turn tanks the GPU's performance. If you are playing on a Legion 5 Pro or similar machine, your fans will sound like jet engines and CPU temperatures can spike into the upper 80s. You must cap your framerate and disable volumetric smoke to keep thermals under control, otherwise the thermal throttling will make the game unplayable after 30 minutes of sandbox mode.
Frequently Asked Questions (FAQ)
Will the developers patch the performance issues? Yes. Galaxy Grove has acknowledged the optimization complaints on their Discord server and Steam community hub. While the 1.0 release focused on delivering the Tourism update and the Rocemarée map, future minor patches are expected to address the AI restructuring loops and terraforming spikes.
Why does my GPU usage drop to 30% while my CPU overheats? This is the classic definition of a CPU bottleneck. Your graphics card (GPU) finishes rendering the 19th-century Mediterranean houses instantly, but it has to wait for your processor (CPU) to finish calculating where all the citizens are walking before it can draw the next frame.
Does this CPU framerate fix Town to City work for the Steam Deck? Yes. The Steam Deck's custom APU is heavily CPU-limited in simulation games. Lowering the visible citizens, disabling volumetric smoke, and locking the Steam Deck's refresh rate to 40Hz/40FPS is the best way to enjoy Town to City on the go without draining the battery in 45 minutes.
Why does the game freeze when I place a building? Because of the gridless placement system, placing a new building forces the engine to dynamically recalculate the collision mesh and pathfinding routes for the entire surrounding area. Pausing the game before placing large structures like hotels or warehouses mitigates this freeze.