super slow refresh + bugged tooltip

hello,

Recently i bought new ssd disk + 144hz monitor, reinstall win 10 pro and install new GPU drivers, when i downloaded UE4 16.4.3 (i used to work with 16.4.2) i discovered that is tooltip bugged (not big deal) then i move to my project, everything was super slow (like refreshing). I know sound stupid so here is video

i already tried different version of ue4, download directX, downlaod Visual studio, try to run UE4 without 144hz monitor,

Please help

[Additional information]
i dont have this problem in games (but in DIRT 3 i have very similar problem)

Radeon Software Version - 17.7.2
Radeon Software Edition - Crimson ReLive
Graphics Chipset - AMD Radeon R9 200 Series
Memory Size - 3072 MB
Memory Type - GDDR5
Core Clock - 1070 MHz
Windows Version - Windows 10 (64 bit)
System Memory - 8 GB
CPU Type - AMD FX™-8350 Eight-Core Processor

Radeon Settings Version - 2017.0720.1902.32426
Driver Packaging Version - 17.30.1041-170720a-316467C-CrimsonReLive
Provider - Advanced Micro Devices, Inc.
2D Driver Version - 8.1.1.1614
Direct3D® Version - 9.14.10.01292
OpenGL® Version - 6.14.10.13491
OpenCL™ Version - 22.19.662.4
AMD Mantle Version - 9.1.10.0220
AMD Mantle API Version - 102400
AMD Audio Driver Version - 10.0.1.1
Vulkan™ Driver Version - 1.6.0
Vulkan™ API Version - 1.0.51

Looks like a driver issue to me. There’s clear issues with the render target only being partially flipped to the front buffer - generally wherever you force it by dragging over an OS window rect, which is the sort of thing I’d expect with driver problems.