Sadly this is true, it demans a lot of recourses from your computer to run the game and recording at same time
With my PC (2.7 ghz, 1GB ram and Geforce 6600 GT) I still have problems with it, very low fram rates, so probally the best would be to get a new machine.
i have used fraps before and it never done this when i was running windows xp i was makeing movies in first person shooters and sumtimes id make a gta sa movie with fraps!!!
true the other games i play are shit games compared to lfs the only other games that i play that take a good pc to run are bf2 bf2142 cod2 dawn of war and guild wars*for some odd reason ever since the last update it guild wars it takes alot more to run it*