Cheers guys! I had a go with each of the suggestions. I think I have however narrowed it down to something along the lines of a memory related situation while using UDIMs. I created a new paint details layer in the image editor and changed the resolution and number of UDIM tiles. It definitely improved performance.
I initally had six 4k UDIM tiles and that was causing massive lag. I tested it with one image set to 4k – that worked fine. I then added in the remaining UDIM tiles and adjusted their resolution for their respective model parts. The lag increased, but it is nowhere near as bad as it was with six 4k tiles.
I might have to make do with not getting over zealous and using 4k textures for everything lmao
Alternatively, It still seems to be that the image editor (as well as the UV Editor) is a massive culprit too. I can have any other number of editor types open (I even opened up ten or so 3d viewports) and it runs fine… all up until I include either an image or UV Editor. I assume Blender slows down when it starts to translate data from the viewport to the image editor?
I’ll have a dig around online to see if there are any suggestions, and play around with settings in the preferences etc. But does anyone have ideas on how to improve the performance in either of the mentioned editor types?
