Details
Description
Open a jalview desktop instance.
Open the example alignment and resize the desktop so it is just showing the example alignment. Try using the mouse wheel or trackpad to scroll the alignment up and down. Also try interactive selection and expansion of the selection by dragging.
Make the desktop window and alignment panel full screen and try the same operations.
This is almost certainly related to the additional overhead involved in rendering to a 4K screen (JAL-1776) but the problem may also be exacerbated by the same redraw issues causing JAL-1800, since the sluggishness reflects the whole alignment panel being redrawn on every interaction, rather than just the parts that have changed.
Open the example alignment and resize the desktop so it is just showing the example alignment. Try using the mouse wheel or trackpad to scroll the alignment up and down. Also try interactive selection and expansion of the selection by dragging.
Make the desktop window and alignment panel full screen and try the same operations.
This is almost certainly related to the additional overhead involved in rendering to a 4K screen (