Safe Mode Troubleshooting

[Homeuser]

I have been having a Terrible lag issue with my SGH-497 (Samsung Galaxy Tab 2 10.1). I can Swype or tap something and it take almost 5-8 second for it respond. I want to troubleshoot the reason behind this. I have successfully started it in Safe mode (starting it and holding down the volume down button). Here, everything seems to work perfectly. On a computer, I can usually figure out what the culprit is, but on the droid, I can't. How do I figure out what app is causing my issue? If I go to the task manager on droid, and clear the RAM, it would close about 40 apps... too many to try one by one...lol

Thanks in advance!