Hi OKtoz,
On Mac the performance of DisplayLink screens cannot be on par with the internal screen for many operations (due to APIs and the SW renderer) but moving the mouse pointer should work well.
Also I'd expect moving windows around to be fast enough for productivity use with a resolution of 1920x1080 (unless it's 1920x1080 retina). But certainly you'll see a delay compared to the internal screen.
So your user experience is somewhat below what I'd expect.
Unfortunately performance is not easy to debug remotely so opening a support case would not help much. Fortunately, we are now working on performance to make sure we're displaying 100% of what the operating system is giving us.
So in short I cannot provide any short term solution but we may have improvements in the next major release currently scheduled for this Fall.
Best regards,
Carlo
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