Logo list blinking issue

Hello guys, i have an issue with my logo grid list, who is blinking half of the end of the logo. I’ved tried several thinks, but with no success (other than pass the logo on eager and not lazy charging. It fixed the issue, but exploded my score on google).

This is the real website : https://www.djeelt.com/

Have any ideas on who to fix this ?

Thanks


Here is my site Read-Only: LINK
(how to share your site Read-Only link)