I'm quite the noob to Ubuntu and I tried it a long time ago and had this problem, and after reinstalling today i'm still having it. I duel boot alongside Windows 10 which runs perfect, but on Ubuntu it's absolute trash. I can't watch a youtube video without freezing and lagging, and even the menu for lubuntu lags. Yes, obviously I updated my Nvidia drivers in the additional drivers so please do not suggest that. Can anyone possibly give me some help? Thank you!
Memory: 24 GB
Processor: Intel(R) Core(TM) i7-6700 CP
Graphics: NVidia GeForce GTX 745
OS Type: 64-bit