about why MacBook is slow and lagging while using premiere pro

Hey,

I have a Macbook Pro 8/512gb with a M2 chip.

I use Premiere Pro for video editing (7 gb are available for PP performance).

I do simple video editing with full HD 60 FPS footage (ca. 1h). Not many special efffects etc.

When I do the cutting the program and the video + sound starts lagging. I have to wait a few seconds until I can start the playback of the video to cut. But when I cut the lagging start again. This should not be the case, since its the latest version of PP and I think it supports the M1 chip.

Anyone who had similar problems or tips?

Thanks