I stay far away from adding delays into keys.

I'm using 100% hardware / ema / and a keyboard with onboard memory macros.
The on board memory macros I use are mostly to remap keys / press multiple keys at once (think face rolling) with no delays.

I haven't had anything but positive reactions in shadowlands so far, but maybe it's because I roll around on Long Boys when I'm in Oribros for the AH for people.