I am in holidays and I want to do some Emacs !
With Emacs 26.1 on my Xeon Debian box, I have some problems with the following C++ file: https://github.com/mamedev/mame/blob/master/src/devices/cpu/z80/z80.cpp (which is part of the Mame project).
When I open it and press several times the "page down" key, Emacs seems to hang. In fact 100% of the cpu is consumed during 10 to 15 seconds. Then it works well.
My Emacs config is nearly empty.
The code is a little special as is contains lot of macros, but I can open it and navigate into it without problem with vim or VSCode. What should I do ? Thanks !