The -45min. reporting time is the minimum time you should report, does not mean you cannot come in a little earlier? And by the way the paper work is divided up between capt-f/o. Just hope the computer is working!
So because the company isn't providing enough time to properly brief yourself and the crew, you have to do it in your own time?
I wonder if you would count those 15/30 minutes towards your max FDP and does RYR do that? How about when on minimum rest?
And I never divide my preflight planning between the capt and the FO, I do it together with the other one. Fortunately in my company a minimum time is decided upon together with the union so it is usually more than enough. IN the rare case it isn't, I can take extra time, I might have to tell them why I left late to explain away the delaycode, but it is always accepted as a valid reason.
Pre flight briefings are important, so is enough time to do it...