Menu display issues at high DPI

[ssb22]

I downloaded Cevelop version 1.14.1-202002280938 on Fedora 32 running GNOME 3.36.6 on X11, with Settings / Displays / Scale set to 300%.

Cevelop's menu bar (File Edit Source Search Refactor Navigate Project Run Window Help) and the toolbar icons under it are all displayed very large, but when I go to click on any menu or toolbar icon, the calculation of "what has been clicked on" appears to be made on the basis of the menus and icons being smaller.

Therefore, in order to click on anything, I have to guess where that thing would be if the menubar and icons were displayed smaller. The File menu is easiest to click on, after which I can navigate the menu bar with the arrow keys. But this still creates problems refreshing the display, because not all display updates agree about what size everything should be. The icons are very difficult to use with this problem.

Thanks.