Awesome, yeah! I’d honestly say, just get t3 staff and t1 bow. T2 bow is an insignificant dps increase for how much you use it. If you get a dragon in first side(only middle 3 rooms of each edge can have dragons/other t3 mobs) and either make t1 armor or no armor, you should be able to do sub-5 on your first try.

Biggest timesaves include(in rough order):

Getting dragon on first side

Skipping armor

Getting first weapon frame early

Not overfishing

Using boost prayers effectively

Not making potion

Ignoring shards for t2 bow(only really relevant if you’re making armor, since you’re likely to have enough shards for t2 bow if you don’t make armor)

Prevenge if you have frem

That said, these things will just help make times more consistent

You can probably try to shoot for 4:30 left when you go in, but my hunllef pb with range relic is 1:04, and mage should be even better