84% frame drop when logging with console open

When the console is toggled open, console rendering causes the frame rate to drop from (on my computer) 120 FPS to 7 FPS when adding one message per frame.

The problem seems to be that TextMeshPro has to render the entire block of text instead of using a scrolling list of lines and only rendering those visible in the view (e.g. a ScrollView). This issue also exists in the latest version (2.6.6).