Performance & Optimization
Keep the engine running smoothly and fix lag, frame drops, and stutter on any device.
Start With Your Browser
The engine runs directly in your browser using your GPU, so performance depends on your hardware and browser. If you notice lag, close other heavy tabs, make sure hardware acceleration is enabled, and disable extensions that might interfere with WebGL/WebGPU. Chrome, Edge, and Brave generally give the best results.
Use Chrome, Edge, or Brave for the most up-to-date GPU support. See the Optimization Center guide for a full, step-by-step hardware checklist.
Ball & Particle Counts
The number of active balls is the single biggest factor in frame rate. If a run slows down — most often in Spawner mode — reduce the spawn rate or the maximum ball count, or reset the scene to clear it. Heavy trails, large blast effects, and high parallax density also add load.
- Typical comfortable limit on mobile: a few hundred balls
- Desktop can handle far more, depending on GPU
- Trails, blasts, and dense parallax add cost on top of ball count
Performance Mode
Turn on Performance Mode in the SIM tab's Optimization sub-tab. It reduces expensive visual effects like high-resolution glow and complex trails so the core physics stay fast and responsive. Use it while building heavy runs, then turn effects back up for the final recording if your hardware allows.
Smooth Recordings
Recording is more demanding than playback. If captures stutter or fail, lower the resolution or frame rate, shorten the clip, and make sure your laptop is plugged in. For long 4K/60 renders, use a desktop machine. Keeping local recordings reasonably short improves stability.