Very Choppy Livestream

[TEITR]

hello using a iMac
everything is very laggy and choppy when going live and also tried the auto wizard and changing the screen size
ive tried the auto wizard and nothing has helped

here are the specs

iMac

processor 3.8 Ghz 8-Core intel Core i7

graphics: AMD Radeon Pro 5500 XT 8 GB

Memory64 GB 2667 Mhz DDR4

here's my obs log

https://obsproject.com/logs/UkMtBhEfQ9oCliVc

please help me fix this issue.

 

[TEITR]

also have a lot of videos in the archives of a scene but they only run when activated don't know if that matters