She has a lot of similar tweaks since I've set hers up.
I uninstalled a few tweaks and seen no benfit, I then turned off about 10.
My ram increased significantly, I then started turning back on tweaks two at a time and the ram levels stayed at the higher level!!! So I'm insure which ones were eating the ram and why it's not anymore but I'm happy anyway. The biggest culprits I found were gridlock and 3G unrestrictor but they're back on now and all is fine.
Some of the knes I uninstalled were mewseeksync and MultiIconMover and Multifl0w as pointed out by D3xus.