Try to reset the preferences of Photoshop using the steps described here:
https://helpx.adobe.com/photoshop/using/preferences.html#reset-preferences
It's recommended to backup your settings before resetting the preferences.
See here: https://helpx.adobe.com/photoshop/using/preferences.html#backup-photoshop-preferences
Is your system up-to-date? Do you have installed all recent updates and patches for the operating system and the device drivers, especially the graphic driver. If you have a NVidia graphic card installed, make sure that you are using the recent Studio version of the driver, not the Game Ready version.
If this all doesn't help, we need more informations about your system. Maybe you can post your Photoshop system info. In Photoshop goto Help > System Info and hit the copy button. Then paste the entire informations into this thread.
PS: Is there a reason to use such old PS version?