I updated to iOS5 and jailbroke using redsn0w on my iP4 a few days ago, and everything was perfect. Then a few days ago after a reboot/respring (don't remember), I noticed that the springboard started noticeably lagging when swiping between app pages. What's weird is that the phone only lags in this one instance, everything else is perfectly smooth. Notification center dropdown is smooth, apps launching and closing, other animations, everything is fine. But when I swipe to my second page of apps, there is a very clear choppy lag that occurs, as if the phone is buffering my apps. Anyone else experience this? I've tried to re-run redsn0w (unchecking "Install Cydia") and it failed...when the redsn0w code is all over the screen, I noticed it said something about an error, then waiting, then something along the lines of "giving up." I rebooted and it was the same, so I assume nothing happened. EDIT: I've tried removing tweaks and disabling Mobile Substrate addons, but nothing fixes it. Going into Safe Mode, however, seems to alleviate the problem, so it looks like it is a Cydia tweak that causes it. I'm going to go start uninstalling things one by one until I find the culprit, but if anyone knows what causes it, please let me know and save me some time. Thanks!