Real life "GA IFR using the full IR" is a lot easier than IR training because, at Eurocontrol levels, IMC means icing most of the year, so one actually spends most of the flight in VMC.
On my last trip to Greece which was 100% IFR, I logged something like 5-10 mins instrument time.
And my advice on the training flights is -
Get the aircraft slowed down a bit to give you more time.
You actually have more time than you think to set things up.
Even while setting up, keep coming back to your basic scan.