I would like to suggest a few things I have came across in-game, The first one is to revise some of the drop tables, for example.
Replace the Coconuts with some other supply drop, as this item isn't used on this server.
Replace the Crushed nests with some other supply drop, as these are drop a lot more often by experiments.
Higher the chance of a Dragon scim drop, I seen a youtuber go from 50-99 mage trying to get one, I also done a few hours there and didn't get one. You've made it harder to get a dragon scim on here than on OSRS.
There are a lot of instances like this where a high level monster has items which are rather not used at all on this server or have items which are dropped at a much higher rate by a much lower monster.
Ironman points shop
I would like to suggest adding a new Mystery Box for ironman, this box wouldn't have recycled items. This would make it so donating on ironman is worth it, currently I have to constantly bother Tom to transfer my points from my ironman account to a normal account otherwise I would have $80 of points going to waste. (To put it in perspective I've gained more supplies from Clue scrolls than I did from $80 of Mboxes)
I will add more suggestions at a later point.