... or at least add those in?

I've been doing runs of this one on the Genesis Plus GX core in RetroArch, so I thought I'd share my rationale for this to pre-empt possible questions.

It all stems from these testing efforts by Sonic 3 runners into whether runs on emulators offer any significant advantage over console runs: https://www.speedrun.com/s3k/thread/w89y7/2#vcgia

The gist of it is this: Fusion is usually quite a bit faster than a real console. Blastem is usually on par with a real console. Genesis Plus GX core (in RetroArch and Bizhawk) is just marginally faster than a console. Most other emus fall between GenPlus GX and Fusion.

Here's a quick comparison vid: