Poor Performance with Screen Rotated

[M_B]

Originally Posted by dmtroyer

Hi,

This has been mentioned before, but I thought I would add some feedback that I am getting noticeably much poorer performance from a monitor that is rotated 90° than from another that is in regular landscape mode. Movement and transitions are laggy and choppy. If I rotate the monitor back to landscape mode performance is great.

Monitor 1: 1920x1080 (Rotated 90°)
Monitor 2: 1920x1080
Monitor 3: (Built in Retina Display)

DisplayLink 5.0.1
Dell D6000
MacOS 10.14.2
MacBook Pro 13-inch, 2016
3.3 GHz Intel Core i7
16GB 2133 MHz LPDDR3
Intel Iris Graphics 550 1536 MB

@dmtroyer

In the past, using a very similar set up, Macbook pro 2017, D6000 and x2 1080p screens I was able to use one screen in portrait with zero lag, this would have been pre Mojave 10.14.3 and on a slightly earlier DL driver version.

Question is, has this just started happening/have you just tried out portrait mode for the first time or had portrait mode not been laggy for you in the past?