Though your picture was taken at a distance from the vessel in question and that the ship isn't being viewed straight side on as it seems to be steaming at an angle to the camera it should be seen to be different from the Titanic in Father Browne's collection:
The Titanic is shown here to have a more prominent superstructure, white painted promenade decks, which isn't apparent in your photograph.
From: Mark Powell <[log in to unmask]>
To: [log in to unmask]
Sent: Sunday, 1 April 2012, 21:14
Subject: [BRITARCH] is this the titanic ?
my father has been scanning and filing negatives from my deceased
grandfathers estate whilst researching our family history and we were
seeking confirmation that the ship in the photo is the titanic , if so it
will allow us to accurately date the set of negatives
in this image the same ship is in the background
many thanks in advance