I 5-boxed in Legion without issue and did some 3-boxing at the start of BFA, but when I came back recently, I can't even comfortable dual box. At best I can get some like 20-30 fps in my main window in cities and not much more out in the world.
What sort of rigs is everyone running to 5-box now? Any tips to boost FPS through ISBoxer?
Mostly the same ones we used in Legion.
https://www.dual-boxing.com/threads/...-8-1-5-DirectX
To add to what Ugh said, and to answer your other question:
http://isboxer.com/wiki/HOWTO:Tweak_your_framerate
After a lot of playing around with the settings, it seemed to have something to do with CPU setting in Isoboxer.
I had set main window to 70 fps and for some reason it was dropping my fps like crazy. When I reset it to the default of 60 I could play again no problem.