Very fast players

Hey everyone.
This isn't really a problem I have, just a quick question out of curiosity.

I had a few players on my server who got their stuff really fast. I mean very fast. Under 10 minutes. They got a workbench level 3, dozens of weapons and probably a lot of blueprints too. 

I am certainly not the best Rust player there is. But I have a pretty good idea about how long it takes to get everything. So my question is:
Is it normal or possible to get that far in 10 minutes? Am I just slow? (pls don't @ me!) Or am I dealing with cheaters?

If you are running a modded server they probably found and exploited a bug in your server, could be an autokit is that set to not hidden, with unlimited uses, you bind it to a key and redeem the kit a million times and recycle everything for scrap.

No, I'm running a vanilla server