Hi,
since I’m new to OSM editing, I’m currently learning to work with JOSM on a Mac.
What bothers me the most, is the somewhat sluggish performance of JOSM. I run it on a current-gen Intel i9 Mac with external graphics. Maximum RAM usage for the Java VM is set to 8GByte, yet scrolling is very laggy at 1-2 fps. It also does not make any difference if i run it in HiDPI (Retina) or low-res mode, aside from HiDPI resolution being very helpful for map editing.
Is this usual performance for JOSM or do i have an unsual performance issue?