Why do you think this version is unrated?
The convertion to pal is always a longer version as it run slower, so 2 or 3 minutes should be normal.
The french VHS is saying 90 min on the back cover, but most of the time it's not accurate, and can be 5 min longer or shorter, even more.
The one you pointed out is from the UK, and as it was one the most censored country in Europe, I doubt they had a better version than anyone else.
I'll come back if I can find more infos about European versions.