"Romanian accent"? This suggests to me that either you yourself are Romanian or you have a rather acute ear. I live in Romania and it seems to me that almost every Romanian speaks English with a slightly different accent. I'd be hard put to it to identify a Romanian from his accent if I lived in London for instance. The same would not be true of an Italian, French or German native. I have no idea what a 'Romanian accent' is, let alone a 'strong one'.