u/Ashy366

Hi guys I was wondering if anyone can help me out. I have a LG ultra gear 32 inch 240hz oled and yesterday I had a new second monitor delivered being the Koorui 320hz 1440p monitor. I have been experiencing high latency issues on the second monitor and also black boxes appear on whatever I have set as the main monitor. I have a prebuilt PC from PC specialist with an MSI RTX 5080 with an ASUs tuf gaming 98000x3d. Is there any possible reasons why I can’t get them stable and should I return the Koorui and return to 1080p as second monitor? Any help accepted