Yeah, I used it a while back. ElectrumX is my daily driver simply because I set it up long ago, but if I had to set up a fresh one I’d use Fulcrum.

There’s a config option, can’t remember what it’s called, where you can turn off some guard rails for faster initial sync. I DO NOT recommend it. It was faster synching while it worked, but inevitably it would crash and I’d have to start over.

I don’t know if they fixed whatever bug was causing the issue, but I’d recommend just using the default config options.