Hey i'm really trying to record fortnite on my PC I use geforce overlay to record but now im getting red line of death and its really messing around but when it did work I didnt have fps drop while recording. now im trying to use OBS to record and as soon as the program opens up my Frames drop by half, im on a 144hz monitor so its important that i stay up above 144fps i usually get over 200 but with obs open I only get around 100 fps and it dips which really messes up my gameplay any help would be greatly apreaciated. Heres my specs

rocessor: Intel(R) Core(TM) i5-3570K CPU @ 3.40GHz (4 CPUs), ~3.8GHz
Memory: 16384MB RAM
Card name: NVIDIA GeForce GTX 1070