Mine is really slow to everyone is having problems with slowness and crashing suppose we just have wait until the makers can help us with this problem?? When you click on speed 3 does it take forever cause mine does and its doing my head in!!!
Yes, mine can be really slow at times and waiting for my Sim to wake up is annoying (takes too long). Blooming annoying that you cannot go into the community buildings too. Sims 2 seems better just now - hopefully the changes will improve Sims 3.
Switch it from full screen mode to a windowed version. This usually lightens the load on your processor, which can tend to speed things up.
Make sure you exit out of all of your background applications that aren't essential. And, like always, try lowering your graphics. TS3 is much more graphic-intensive than TS2 was, especially with the new town system. Things are constantly happening around you, so when you speed time up, it's not just your household that's going faster, it's the whole town.
Perhaps turning story progression off would help, but I'm not sure about that.