So I have used fraps for about 2 years now and all of a sudden it starts to lag. Whenever I'm not recording I get around 120 FPS but when I record it drops to 30-60 with a lot of lag. I have never had this problem before and it is really starting to annoy me. I uninstalled and installed the program and deleted a bunch of stuff on my computer. My computer is fairly new and it is a really good computer with nvidia graphics and an i7. I record minecraft btw.
Fraps Lagging when recording?
Interesting, i've had this same problem as well. I soon figured out that the issue was because I had updated Minecraft to the newest version which seems to have a problem running with Fraps at the same time for me. What version of Minecraft and what version of Fraps are you running? These may have to do with your computer lagging. It also might be something you may have downloaded recently. I can't count the number of times i've downloaded a file on the internet and it turned out to be a virus slowing my pc down. Have you recently scanned your pc for Viruses?
Use snagit rated #1 software for recording
That's how Fraps is coded to work. If your target fps is 30 then Fraps will be able to record only at 30, 60, 90, 120, 150, etc. If Fraps performance drops even to 58 fps then it automatically will lock it down to 30 fps.
If you want stable 60 fps then you must ease the tension from computer as much as possible to make sure Fraps will NEVER drops below 60 while recording.
I would advice you switching to Dxtory. Primarily because 1. It offers less framerate penalty while recording. 2. No annoying specific framerates, it will record at variable framerate how much ever your PC can handle. 3. Various useful features and benchmarkings.