Before you start
- Save the project before troubleshooting.
Steps
- Close other GPU-heavy tabs and pause unrelated downloads or video calls.
- Replay the animation after the effect engine and source finish loading.
- Reduce the number of fragments or copies when the selected effect exposes those controls.
- Try a smaller export size or lower frame rate for the final render.
- Compare with a simpler motion to separate a device limitation from an asset problem.
Expected result
The preview becomes responsive enough for editing, or the test identifies a specific heavy effect or device limitation.
Common problems
- A smooth final export can still differ from real-time preview because exports calculate exact frames rather than relying on tab playback timing.