Anyone who has "figured out" the Fiverr algorithm could sell it for a lot of money.
There are certain things that everyone can and should do - quick responses, on-time order delivery, social media posting, Buyer Requests, etc. But there is no magic formula.
I have been a Level 2 Seller for quite a while with steady orders from regular clients. Then, for no apparent reason everything stopped completely. No orders or messages for going on 3 months now. I've tried everything I can find to do and no change.
Also, FYI in case you didn't know, Fiverr also sends clients a private review for you after the job is completed that you the seller will never. But it MAJORLY affects your status, rank, and sales.