What GPU do you have? I ask because though a lot of GPUs can sustain over 240 FPS on CSGO, most modern games take a considerable amount of graphics power just to maintain 60 FPS at max settings.
Meaning games like PUBG and CoD WWII would be an entirely different scenario where you'd be more concerned about whether you can even maintain 60 FPS. So scaling and screen tear issues become a concern.
A monitor like the XL2546 is targeted specifically at eSPorts gamers whom play games like CSGO, which are built on older engines and can sustain very high frame rates. It's really out of place for anything else.
The XL2430 is probably more practical, provided you have a GPU powerful enough to run games like PUBG and CoD WWII at high frame...