Trying Steam feature to have video banner affected my website performance in pagespeed, but real user experience is faster

Trying Steam feature to have video banner affected my website performance in pagespeed, but real user experience is faster.

when doing a performance test using Cloudflare video stream it will show in pagespeed result black screen and “An unknown error occurred” as seen in the attachment.

This reduced our performance score on desktop from 92 to 80s. although the end user performance and feel is better, the score is lower.

Please assist.