Thanks everyone!
Lowering my settings did the trick. No problems with night/day switch, or doing the memory thing or queueing up things to do. It's also a lot faster for me. Oh, I also turned off Origin which I think helped my pc in general. With it on and leaving Firefox on it just slowed everything way down. CAS is still horribly slow but it always has been for me because I do a lot of recolors on clothes, (and have a tremendous amount of clothes and hair anyway), and I save my recolored things. So everybody, exit from Origin to give yourselves a wee boost in speed.