Yesterday I decided to update my 19.04 to the newer 19.10 Ubuntu version. Everything goes perfectly fine since I burned a DVD specifically for this (Updating through software wasn't working).
I do a little bit of gaming, and while this new Ubuntu update gave me higher FPS, it has also gave me something that I can only describe as playing with 30 FPS. I've only played two games so far (Rocket League and TF2, both with native Linux support) and it's a problem since it starts giving me headaches after a few minutes of play-time. Note that on both of those games I achieve consistent 200-250 FPS. I'm also using the version 390 Nvidia's driver, and the card is a GTX 1080. This also didn't happen in the previous version I had of Ubuntu.
I'm new to this type of forums so I'm sorry if the formatting of the question isn't the best or I missed to mention something important about my system.