Not sure there is much I’ll be able to do. Maybe here’s one idea. If you are using that same expression a bunch of times, create a dummy layer (like a NULL) and put that as the expression on some Expression Control properties there. You’d have to modify it to read from the layer you are interested in. Now point all the expressions that use that to pull their value from the other layer. That may give you better expression caching behavior. Again, this is only going to help if you have that same expr repeated on multiple properties of one layer right now.
Michael Natkin
Sr. Software Engineer
Adobe After Effects