iOS8 RAM hogs – how to free RAM?

So, I ever since I upgraded my ipad2 to 8.1 I got ready for a life of pain. It has somehow gotten worse and worse. Not sure if it physical chip performance degradation or system gunk.
Even in Safe Mode I get less than 10mb by default, purging gets it over 150, but not for long.
Already done: spotlight disabled, reduced motion, disabled unneeded widgets.
So, any more ways for me to decrease RAM overhead?