It SLOWS DOWN my mac instead of "boosting" it!

App works really SLOW, when I saw how much memory I had via little app Memory Sweeper while running ONLY iBoostUp, I was terryfied. It was around 10.5MB!!! All I could do was "quick clean" and it wasnt quick at all. Any other actions in this app (or outside it, while it was running in background) just made my computer freeze. When I finally forced closing it, Memory Sweeper showed me 3264 MB of free RAM. I have iMac 2008 with Mountain Lion.

Agabee about iBoostUp, v3.4