I have a RAZR HD and decided to root it (in hopes of improving performance). I've been using Batakang for a while, but I have used up my 2 GB partition. I have 16GB of internal space but I am limited to using only two. Is there a way to increase this?

Also, my Razr HD is super sluggish, both using stock and Batakang. I'm thinking about un-rooting and doing a factory restore. If that doesn't fix the speed issue I may pursue warranty options with Verizon. Does anyone have any suggestions I should try first? It seems to range from "working ok" to "click an app and wait 30 seconds for it to open". Wiping the cache seems to help for a short time but it slows down again.

Thanks for any advice.