Performance tuning works best when you make one measurable change at a time. The goal is stable frame pacing and responsive input, not simply the highest graphics settings your device can display.
Establish a repeatable test
Use the same chart and the same section while testing. A repeatable scenario makes stutter changes easier to notice.
Quick validation
Change one variable, test it immediately, and keep the working state before moving to the next adjustment.
Set a sensible frame-rate target
Choose a frame-rate configuration your hardware can sustain consistently. Avoid chasing an unstable peak if it creates uneven frame pacing.
Reduce visual load methodically
Lower resolution or demanding visual options one at a time, then retest. This shows which setting actually improves stability.
Close unnecessary background tasks
Browsers, overlays, recording software and update processes can consume CPU, GPU or storage bandwidth. Compare performance with them closed.
Separate song scanning from gameplay issues
If stutter only appears while managing a large library, test with a small song set before changing controller settings or latency values.