MacOS Mojave screen artifacts

The same problem on High Sierra screen artifacts

This problem starts from Hight Sierra and goes to Mojave. When I downgrade to MacOS Sierra - the problem is gone. I think the problem in a new video driver. This driver has conflict with the old iMac screens for example: iMac (27-inch, Late 2013)

Here is my config:

MacOS Mojave

iMac (27-inch, Late 2013)

3,2 GHz Intel Core i5

8 ГБ 1600 MHz DDR3

NVIDIA GeForce GT 755M 1024 МБ

Dear Apple, I hope you will fix this problem. Please don't turn away about your older ones products.

Thank you.