Hello, I have recently downloaded Fallout New Vegas Ultimate Edition for steam everything was going well, I like to start new games because I'm always testing mods I download, after awhile I noticed when you start a new game the video that plays ended up lagging out a small box at the top left corner would play the video for abit then the whole video would freeze but this box kept playing the video, then once in game I noticed that my mouse in game cursor was slowed down alot, even if I mess with the sensitivity I could still tell that it's not picking up my movement right away, and if I hover over some borders in game for example when I 'm picking my special points when I hover over one of the numbers it's abit pixelated, none of this was like this before it just happened the thing with the mouse is extremely annoying, everything takes a second to notice when I look to the left or right or when selecting things in the pip boy., just recently my start button on the screen is abit pixelated aswell same with the lettering when the steam notice pops up when you start fallout and my "start" button on my desktop is also randomaly pixelated abit....I tried googling this but I can't find anything or anyone that has ever had the same problem, anyway I hope someone knows what happend and can fix this right away, thanks for reading.