The engineers, commanded by chief engineer Robert Flemming (who was
Olympic's chief engineer after Joseph Bell was stationed at Belfast), would have decreased the revolutions of the starboard side reciprocating engine to accomplish that. If there are any accounts from any of the engineers, of which unlike her older sister ship all engineering officers' got off the ship (with chief engineer Fleming even staying on-board till the very end until captain Bartlett, assistant captain Dyke and himself were washed from the bridge), can be found we might can get our answers on it.
In the meanwhile, I'll search for any evidence for you my friend.