Microsoft RDP Macmini USB-C external monitor

Elmar Jense 41 Reputation points

I am running Microsoft Remote Desktop (latest version) on the 2020 Mac mini. I connected a 4K LG USB-C monitor to the Mac. the Remote Desktop connects without a problem, only are all mouse actions very laggy. when I click something, it takes up to 15 seconds to do the action. I also had this issue running a MacBook Pro 15" late 2016 connected to the USB-C monitor.

Remote Desktop
Remote Desktop
A Microsoft app that connects remotely to computers and to virtual apps and desktops.
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  1. Eleven Yu (Shanghai Wicresoft Co,.Ltd.) 10,646 Reputation points Microsoft Vendor


    I noticed that your external monitor is a 4K Screen. The mouse action laggy issue might be caused by that.

    Please first check below troubleshooting steps and see if they help. If not, we can do further investigation to figure out if any other cause.

    How to Fix Mouse Lag on 4K Screens



    If the Answer is helpful, please click "Accept Answer" and upvote it. Thanks.

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