this aeroplane cannot perform on one engine and is dangerous
So by that rational all single engine aeroplanes are dangerous too?
As for making decisions straight away, you need to get that idea out of your head, quick decisions only if you have to but if you have time to sit on your hands then you should do.
An engine failure in a piston twin is an act now affair and i'll defend that. If you errr you are losing time you could be acting towards a recovery.
There is a time and a place for sitting on your hands (multi crew jet/turboprop ops) minor system failures in piston aeroplanes etc. This wasn't one of them. Press the nearest airfield function of your GPS, pick the closest and most suitable airfield and go there quickly! This was what I am implying if you read into my post.