Hello and thank you for your suggestions.
I tried all your suggestions , but it really did not see any difference. To illustrate what I tried. This is the current configuration on my server :

This is the output config :

Now , the configuration on my personal computer (with all cache cleared and same output settings) :

And once again :
My computer : 
Server : 
For me it does not make any sense , but I hope to be missing something. Hopefully a codec or so.
Thank you!