Hey guys, let’s put this one to bed 
The minimum term of 5 years is written unequivocally in the Article 65B of the Golden Visa regulations (Decreto Regulamentar n.º 84/2007):
"Minimum time requirement for investment activity
The minimum time requirement of five years for maintaining investment activity is counted from the date of concession of the residence permit."
So I don’t see how a GV PR or a normal PR would require another 5 years of investment 