Problem playing Bon Voyage

[HounDawg07]

For a long time, I've owned every expansion pack up to and including Pets. I've been able to play without any problems. I recently purchased three more: Seasons, H&M Fashion, and Bon Voyage. After installing all three I went to play, but everything was suddenly running much slower. The loading times were ridiculously long, and the game would freeze briefly when loading new hair or clothing in Create-a-Sim. I uninstalled Bon Voyage, and it's mostly better, but I still have a few problems here and there with the game freezing for a few seconds. I don't believe it has to do with my computer's performance, as I've been able to play all of the previous expansion packs with absolutely no problems. I'll post my specs anyway:

Intel Celeron 2.6GHz CPU
1 GB DDR RAM
NVIDIA GeForce 6200 w/ 256MB DDR RAM
Creative SB Live! Digital 5.1
Windows XP Professional

Any help/ideas/suggestions would be greatly appreciated!!