Ipad Running Laggy Fix?

[foolishcreature]

I have an Ipad 2 32GB jailbroken device. Recently it started running very slowing and it is very irritating is there anything I can do to fix this. I have alot of free GB space so what could be the problem. I close my apps too ,so does anyone know a fix for it?

 

[sanjeevmalik]

use battery doctor and clear ram and junk files. it'll help you make some space for new processes.
hope it helped.

 

[foolishcreature]

How do I clear the RAM and junk files?