Install SD28 on the Momentus as it seems to be the tastes and most stable of the firmwares (it is what I have on mine).
I aree that the page outs are high? How long has it been since you restarted. The correct way to measure page outs is to restart, so the counter is reset and then use normally during a normal work day. Since the data is cumulative, at the end of the day check your page-outs. If they are as high as you say then you are needing more RAM, install your 8GB definitely. Also if you are running out of disk space, this will also slow the system (and if you have RAM problems then just compound the issue).
From your screen shots, even though you say you weren't watching anything on Youtube, the Flash is eating up over 11% of CPU cycles. That is a lot, so you have something running in the background or Flash is just taking over. Also if you have pages that auto refresh, such as Facebook tends to do, then you will use cycles there too.
I aree that the page outs are high? How long has it been since you restarted. The correct way to measure page outs is to restart, so the counter is reset and then use normally during a normal work day. Since the data is cumulative, at the end of the day check your page-outs. If they are as high as you say then you are needing more RAM, install your 8GB definitely. Also if you are running out of disk space, this will also slow the system (and if you have RAM problems then just compound the issue).
From your screen shots, even though you say you weren't watching anything on Youtube, the Flash is eating up over 11% of CPU cycles. That is a lot, so you have something running in the background or Flash is just taking over. Also if you have pages that auto refresh, such as Facebook tends to do, then you will use cycles there too.