Endless GP?

[SamSmoot]

I was sitting near an Ephemeral node waiting for my GP / cordial to recover, when I noticed one player returning about once every 50 seconds and running what looked like a full collectable rotation (Discerning eye appearing occasionally) Every time. For me, with 796 GP. the only way I can do two ephemeral collections in a row is to use a cordial, then I need to wait about a minute.

This other player has 737 GP, 1840 perception, and 1936 gathering.
I have 786, 1951, and 1920.

Is there some food that gives you extremely fast GP recovery?