I've been using a Mac Book Pro, late 2013 version since early 2014 and have really struggled when using any USB display connections. For a while, the majority of apps worked reasonably well, but the performance with Microsoft Office 2016 was sluggish and unbearable for productivity. For the past year, I've avoided any usb multi-display due to the window corruption issues with Sierra. However, I upgraded to High Sierra and v4 of the DisplayLink drivers and am really impressed with the performance. Thanks for the continuing to work on the OSX drivers and all the improvements on functionality, stability, and performance. Keep it up!! Thank you!