Photoshop makes my computer freeze wile using it

[Zoe24258404n37s]

on 2 difrent computers now every time i launch photoshop it slowes my computer down significantly. Today it straight up froze the whole computer, i had some music playing an intenet browser with 2 tabs and the photoshop. i dont think thats asking to much from a computer. on my other computer thats a laptop i can only have photoshop open and nothing else running and it still acts realy laggie when edditing photos. 

[John Waller]

Which operating system?

Which version of Photoshop?

[TheDigitalDog]

When Photoshop crashes or freezes, this is the first thing to do, try resetting your Photoshop preferences. Press and hold Alt+Control+Shift (Windows) or Option+Command+Shift (Mac OS) immediately after launching Photoshop. You will be prompted to delete the current settings. You can also reset preferences upon a quit if Photoshop is running by going into General Preferences>General>Reset on Quit.

If that doesn't work, a few other areas to try: 

• Go to Preferences > Performance... and uncheck Multithreaded Compositing - and restart Photoshop. Better? 

If that doesn't work, Go back into Preferences > Performance... click Advanced Settings... and uncheck "GPU Compositing" - then restart Photoshop. Better?