Lightroom culling larger raw files slowed with new update

I shoot photos for a news outlet full-time with three different cameras. I have a Sony A1, a Sony A9ii, and a dji mavic pro 4. I edit on my 2021 16 inch MBP with 16gb RAM. I updated lightroom the other day and I've noticed that culling through the raw photos, arrowing through as I make selects,  from the A1 and the mavic 4 pro (Bigger files than the a9ii raw files) has all of a sudden become incredibly slow. Each photo takes a moment to load and this makes going through a card of two thousand photos to make my selects pretty frustrating. It's being read from a CF express card in a reader into a usb port that's always worked flawlessly. Going through an SD card of raw files from the a9ii works as it should still... Just having problems with the bigger A1 + Mavic 4 pro files.

I have minimal previews on, use GPU and use GPU for preview generation has always been on auto. I've purged the cache and upped the cache size to 20gb. I have 250gb free on my hard drive.

I've tried restarting light room, booting from an older backup of the catalogue, restarting the computer...

Are there any new settings I need to turn off / on? Kind of out of ideas.

Help please! Thanks in advance.