Lightroom slow loading folders after launch after upgrade to 13.0.1

Hi,

I have just upgraded to 13.0.1 & Lightroom is now incredibly slow!!

It takes about 10 minutes to load & then another 5 to load all the folders.

It periodically gets stuck on an image & won't load the next image (literally will take a full 5 minutes to load the next image).

It doesn't show any stars/colors/etc when culling.

I am incredibly frustrated with this upgrade - I would appreciate any advice on how to solve these issues.

Thanks so much.

Nicky