Question Issue with Alienware AW2518H

[valenow]

So I've been noticing this small detail that has been concerning me for a while. I recently bought an Alienware AW2518H 240Hz and I noticed that whenever I open a game or alt tab this happens for a second : https://postimg.cc/KkT85sLj then the game screen goes back to normal. I wanted to know if this is normal or I should be concerned and how can I fix it? It's plugged on a displayport and I've tried switching ports

 

[Zizo007]

Sounds like a monitor issue maybe the latest firmware for the monitor fixes it?

 

[valenow]

Sounds like a monitor issue maybe the latest firmware for the monitor fixes it?

Updated GPU and Monitor drivers, still having the same problem.

 

[Zizo007]

What's your GPU? Can you try another display port cable?

 

[valenow]

GTX 1070. i’ve tried other displayport cables

 

[Zizo007]

Last try, can you try another display port plug or you only have one?

 

[valenow]

Last try, can you try another display port plug or you only have one?

Tried other, same issue.