Was that a response?
Could you please let us know which version of Photoshop are you using & which operating system are you working on?
Also, please try unchecking " Use Graphics Processor" in Photoshop's preferences > performance then relaunch Photoshop & let us know if it helps.
I uploaded the newest cloud version, but I prefer 2017. On this computer, I have Windows 7 Home Premium, with AMD FX(tm)-6120 Six-Core Processor. 64 bit