Looks like a GPU issue from what I can see in the video. First, try disabling GPU in the preferences (Performance). Any better? If not, recalibrate and build a new ICC display profile; the old one might be corrupted. If you are using software/hardware for this task, be sure the software is set to build a matrix, not LUT profile, Version 2, not Version 4 profile.
Author “Color Management for Photographers" & "Photoshop CC Color Management/pluralsight"