Is there a limit for the maximum cc the game can handle?

Thanks @Pary , I feel like I'm in safe hands with this helpful community. :)
I removed all SBP stuff, and converted most of my cc which were in S3Pack format to .Package files, now it seems to be running a bit better but I still have long CAS waiting time and low frame rate. I'm thinking maybe the game is trying to keep up with all the stuff that I deleted, and trying to regenerate thumbs, caches etc for the things I put back (because I did a factory reset) but I'm not sure.