Question Dual monitor problem

[Nicklas]

So, a few weeks back I got myself a second monitor,

My primary is the XB271HU @165Hz, and the secondary is Acer XF270H @144hz

So, im having major issues when playing games, when I close games, open up games or other applications that the whole computer slows down, when I move my cursor it is acting retarded on the screen, and sometimes freezes up for several seconds and doing weird stuff

Also happens sometimes when just minimizing games too

If I turn on/off the secondary monitor while computer is on, the primary screen flashes and makes the "device detected sound" Window has, and I can bararely use the computer for the next 30 seconds or so

Extremley annoying and makes it almost useless to have a second monitor since it doesnt seem to work well whatsoever


Any fixes/solutions on this?

All my games I run on Fullscreen Windowed


Specs:
Operating System
Windows 10 Pro 64-bit
CPU
Intel Core i5 @ 3.70GHz
Kaby Lake 14nm Technology
RAM
32,0GB
Motherboard
ASUSTeK COMPUTER INC. ROG STRIX Z390-F GAMING (LGA1151)
Graphics
XB271HU (2560x1440@165Hz)
Acer XF270H] (1920x1080@144Hz)
NVIDIA GeForce RTX 2080 (ASUStek Computer Inc)
Storage
238GB INTEL SSDPEKKW256G7 (Unknown (SSD))
232GB Samsung SSD 840 Series (SATA (SSD))
931GB Samsung SSD 860 EVO 1TB (SATA (SSD))
238GB Samsung SSD 850 PRO 256GB (SATA (SSD))
698GB Seagate ST3750528AS (SATA )

Audio
Sound BlasterX AE-5
PSU:
Seasonic FOCUS Plus Gold 750W

 

[Ralston18]

Update your post to include full system hardware specs and OS.

Motherboard, CPU, GPU, drives, RAM configuration, etc...

Include PSU.

 

[Nicklas]

Added! Sorry

 

[Nicklas]

Hello?

 

[Nicklas]

Please help