Is it not evident that this is a significant improvement? Yes, Turbo, lot of prompts may take 15 seconds, that is normal.
Why would this improvement remove the features that allow you to have your own AI? Could there not be an option to choose?
I am uncertain why others have not asked this. Perhaps they do not use it as a work tool and only see it as a toy.
My website receives 300 visitors each day, and only a few have reported that it is slow. However, the longer they use it, the more likely they will encounter problems.