this is not a provlem of your specs or your rig..
This happens to everyone while he/she uses fraps..so don't panic.
If you record at a high quality using fraps, then the frame rate is bound to drop..
But if you record at the lowest quality, then there wont be much fps drop but still a drop in fps is inevitable.....
Check any gaming video on youtube and read its description..
It's always like..
40-50 without fraps recording
20-24 with fraps( just an example)...
Dont worry..coz what u r experiencing is perfectly normal...!!
Yeah but it is dropping around 60FPS every time I record. You exampled around 20 FPS drop though I am getting three times that.