Use the new Hypervisor.Framework support instead of HAXM on macOS, as described in the comments of the issue filed for this:
Try running the emulator on Canary channel 26.1.x (API 25/26
recommended) with Hypervisor.Framework; put the text “HVF = on” in
~/.android/advancedFeatures.ini (create this file if it doesn’t exist
already).