Well, I do agree that is something to do with my computer and not the Eve Client alone , but I disagree this is hardware issue. I made a askubuntu.com ticket and I narrowed it to VSync not working properly. 500 FPS when it’s supposed to be capped at 60 (or 48 or 120, depending of my display setting). Weird thing is : if I plug any external monitor, my FPS will then be capped (VSync working) to the Hz of my external monitor (even if I put the game on my laptop monitor) and everything works fine, no overheating, nothing.
I really am perplex about that issue, I don’t know how to redact such a ticket to Nvidia / Xorg / OpenGPL whoever might be interested in this issue…