My elgato looks grainy and poor quality even when in 1080p

[PrelaunchRocket]

I have literally tried everything, I've increased bitrate, changed encoder, changed resolution etc and nothing seems to make the picture quality look better, it looks grainy and pixelated, please help!
my most recent log is below :

https://obsproject.com/logs/iA_t3vn_qsov69uD

 

[Sinapse]

Change your encoder preset from ultra fast to medium. If this hits your CPU too hard, choose something faster until you find an acceptable mix of CPU damage versus quality.