Question / Help Fortnite Stream Lags After a Couple of Games


New Member
Greetings! Some friends have encouraged me to start streaming but I'm running into some FPS problems. I usually run Fortnite around 120 FPS with 1080p when not streaming. However, when I stream it would be incredibly laggy. Sometimes, I'll be able to stream and play the first game or two with around 80-110 FPS smoothly. After that, the FPS would have a deep decline. It would be around 40-50 and sometimes it would even be 20-30. The next games would stay at that FPS and even when I stop streaming and close OBS, my game would remain incredibly laggy. I also tested various OBS settings and currently have my output at 720p as well as my resolutions. What is going on? And what should I do?

Thank You!

My OBS settings are currently:

Encoder: H.264
Rescale Output: 1280x720 (My Fortnite is in 1920x1080 though)
Rate Control: CBR
Bitrate: 3000
Base Resolution: 1280x720
Output Resolution: 1280x720
Downscale Filter: Lanczos
Common FPS Values: 30
Preset: High Performance

-Computer's Specs:
Operating System: Windows 10 Home 64-bit (10.0, Build 16299) (16299.rs3_release.170928-1534)
System Manufacturer: Gigabyte Technology Co., Ltd.
System Model: GA-78LMT-USB3 6.0
Processor: AMD FX(tm)-8320 Eight-Core Processor (8 CPUs), ~3.5GHz
Card name: NVIDIA GeForce GTX 1050 Ti
Manufacturer: NVIDIA
Chip type: GeForce GTX 1050 Ti
DAC type: Integrated RAMDAC
Device Type: Full Device