the debugger in #3354 is very slow. On every step the framewindow shows "Waiting for last debugger action" and a fast stepping throw the application is not possible. It takes 10-20seconds per step. Stepping is only faster (1s) if I switch to the console window.
I've configured several type renderers, but the are not very cpu expensive.
Btw. 4.5.4 could show the framewindows very fast even with type renderers (with patched xml-files).