Premiere Pro Suddenly Starting to Lag!

Hi there,

I just started using PP this year as as wedding videographer. I film on a C200 all in 4K across the board (drones, second cams, etc) 3 months ago I got practically a maxed out Mac Studio with 128GB ram, M1 Ultra chip, etc. For the first few months with PP it worked effortlessly.....cutting through 4K footage like butter. I generally don't have a massive amount of footage from a wedding since sometimes I'm filming solo with 1 camera, but even on certain shoots where I had multiple cameras, drones, audio, etc PP would work just fine with pratically zero issues.

However, the last few days I have experienced extreme lag when playing back any footage when logging it or editing it. I can't even scrub through it....and wehn I play a clip it starts fine but then starts to show lag and skip around, dropping frames, audio, etc. I know the usual steps on lower playback res, proxies, etc. But honestly with my Mac I never had to do any of it since it could handle it so well nor should I. The specs should be more than enough to handle my workflow.

Just wanted to ask the question here on why all of a sudden PP is showing lag when it never did before? I've probably edited almost 10-15 full 4K wedding videos, highlight films with ease so not sure what happened over the last week? I checked my file settings and project settings and all is the same as usual.....editing in PR422. Any help would be greatly aprpeciated since the lag makes it almost impossible to work through. Thank you!