Huge Mouse delay problem

Pretty much since reforged (1 week there was no issues) i had mouse delay issues which makes any decent gameplay impossible.

Tried turning vsync, off ,messing with different options. deleting programs that could potential cause it.
Reinstalling ,updating drivers , adding additional cmds before starting wc3 nothing worked.

Worth to mention this pc had amd drivers prior to nvidia card which i uninstalled and removed .
Using vga adapter on monitor and a vga to dvi converter could that cause the issues? or perhaps a faulty cable?
For blizz tech check my previous ticket of all things i tried with tech support.