PhantomMTG

This is a late update, but after about two days of it not working I downloaded GIMP and then Paint.net went back to working without me messing with G-sync or anything. I honestly think my Paint.net was upset I hadn't used it in so long and got jealous over the new fancy GIMP and came crawling back, but thanks for the help guys!

I haven't used Paint.net in a little over a few months and the newest update comes out and I am experiencing a "Cursor lag" that makes using the program impossible. Basically when I used any tool or drag my cursor through the image I am editing the tool cursor is behind my regular cursor by an inch or two and it is overall slow. I have uninstalled Paint.net and reinstalled it, along with repairing the program, and restarting my computer. Occasionally on startup Paint.net will run fine but as soon as I load in an image and start working it slowly degrades back to lagging and stuttering cursor movement. Has anyone experienced this problem or know how to fix it?