I've found that when I have less than 15-20mb memory left everything is slow. I know it will kill programs as it needs memory but even waking from standby takes

I've found that when I have less than 15-20mb memory left everything is slow. I know it will kill programs as it needs memory but even waking from standby takes longer. This could be more of a function of the Jailbreak on my 3G than the software.