Project P.I.T.T. Performance Fixes
Fix Project P.I.T.T. lag, loading freezes, low FPS, and stutter with official settings advice and low-risk diagnostics.

Start with the official fixes: turn off Retro Effect, set graphics detail to LOW, and reduce resolution. Then restart after a large physics-heavy session and use normal Steam/OS checks only as clearly labelled generic diagnostics.
Official first line
The official FAQ names Retro Effect, graphics detail, and resolution as the first settings to change when the game lags. These steps are shown before generic PC advice because they are developer-published.
Low-risk next checks
If the problem persists, restart after a large physics session, verify game files where appropriate, and update the operating system or graphics driver. Those are general diagnostics, not game-specific promises.
Make reports useful
Record the scene, settings, hardware, and a reproducible trigger before reporting a bug. That preserves a useful distinction between a source-backed fix and an unresolved release issue.
Primary source: Official Steam Community launch FAQ ↗. Scope: demo.