Hello @Adham Hossam
Thank you for sharing this question on this community space.
I have seen that you are experiencing high GPU usage for your environment and for that reason, I want to give the next article which can be a good clue where to start.
https://www.howtogeek.com/howto/windows-vista/what-is-dwmexe-and-why-is-it-running/
Image 1
Finally, check any NAT port exhaustion or SSL/TLS issue when this is being used.
I hope you can find this useful to overcome your concern.
Looking forward to your feedback,
Cheers,
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