Need help. How to solve keyboard input laggy

I've been successfully running my Hackintosh with OpenCore,

System version is Big Sur 11.5

All the functions are perfect. But sometime keyboard input is laggy and open the opportunity to blur the screen for a period of time.

Activity Monitor doesn't show anything unusual going on. CPU usage isn't maxed.

Any pointers as to where I can start troubleshooting?

  • Motherboard:msi b460m mortar wifi
  • CPU:i710700
  • RAM:ADATA DDR3 3200 16g*2
  • display:aoc u28p2g 4k
  • SSD:WD Blue SN550 500g*2
  • WIFI: BCM94352Z

screen share, airDrop is Ok

config.plist used OpenCore 0.6.8

The problems found so far are occasional keyboard input delay problems, black screen 5-10s on boot

submitted by /u/Cool_Werewolf_1714
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