Screen flickering

Having periodic screen flickering on my build.

Hardware : Intel NUC5I5RYH driving Display [https://www.amazon.com/gp/product/B06ZYHZ6R6/ref=ppx_yo_dt_b_search_asin_title?ie=UTF8&psc=1] via Display port to HDMI adapter

OS : Catalina

Plist : https://drive.google.com/file/d/1Uni4V5R5qWQGow1Vrpfnw89JaP2rWla9/view?usp=sharing

Any idea which settings I should play with?

Flickering example: https://imgur.com/a/x3Wzt5t