B0rkehh :
Well now it just makes me lag more while recording.. Thanks.. :/
This can't be related to the fact that you put in a 2nd HDD, that just makes no sense
.
Are you actually recording to the HDD which doesn't contain the operating system?
It is quite a general rule that you will experience lagg when recording to the same storage device as the one on which your operating system is located on. A 2nd storage device should fix this... it worked for me and many other =).
Also, the 2nd storage device won't decrease FPS / (maybe increase a bit), but mostly reduce the stuttering / 1 sec laggspikes.