* The game might be using the wrong videocard. Make sure your monitor is plugged into the dedicated graphics card on the back of your PC.
* On a laptop with both Integrated and High-performance GPU (e.g. Intel and Nvidia) make sure it is using the High-performance GPU. There may be Nvidia Control Panel settings for this. See also [https://nvidia.custhelp.com/app/answers/detail/a_id/2615/~/how-do-i-customize-optimus-profiles-and-settings%3F NVIDIA Optimus Profile].
* '''On a Windows 10 laptop, make sure the Windows battery / power mode setting is set to 'Best performance'. Click the battery icon to see this.''' Especially do not use the 'best battery life' setting, this overrides most other settings on your computer and causes Vintage Story to run very slowly.
* Ensure your system meets the minimum requirements
* Windows Update or Windows Defender might be active in the background doing updates or scans
* Antivirus/anti-malware/firewall programs may be affecting performance
* Close other programs to free up resources
* Please ensure the system is sufficiently cooled as some systems slow down if they get too hot. (Make sure air vents are not covered and cooling elements and fans are free from dust for example; if you have a laptop, raise it off the desk slightly so it has better airflow underneath it.)
* Please ensure a sufficiently rated power supply is used. Gaming on battery power is not recommended on laptops as they might choose to run slower in a lower power mode. If you need to play on battery mode, you can extend the playable battery life by reducing the Max FPS to 30 fps and using VSync mode 'On + Sleep' in Vintage Story's graphics settings.
* Mods can use
significant resources.* Check that the system is not overheating or thermal throttling.
* Please do not run the game from an external drive or network share.
* Running on a virtual machine (VM) may also cause performance issues.
===CPU or GPU runs too hot===* The main way to control CPU and GPU usage is using the '''Vsync''' and '''Max FPS''' settings in the graphics settings.* One path to optimise both: pick a framerate you want e.g. 60 fps. Now with '''VSync''' off and '''Max FPS' '' unlimited, adjust the graphics settings that heavily affect framerate (view distance, godrays & bloom, shadows, SSAO) to hit a framerate that's about 15%-20% better than you want, e.g. 70 fps or 80 fps. When the game can comfortably hit that, now set '''Max FPS''' to 60fps and '''VSync''' to 'On + Sleep'. This should produce a stable 60fps, a smooth game with no lag spikes, and less than 100% CPU and GPU usage so that your fans run quiet. * The Occlusion Culling graphics setting is recommended on modern multi-core CPUs - it uses one additional CPU thread but leads to less work for the GPU.
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