Hey Asser!
That is interesting! I did something similar for one of my courses but yours looks better.
However, there is something important I realized with the time. And it is simple.
Why should we look for 5 years on H1 and on M15?
In your table, it is very clear that on M15 we have +160k bars and on H1 we have +40k bars. That is 4 times fewer bars which is logical because 1 hour has 4 x 15 min.
So is 1 kilo of cotton heavier or 1 kilo of iron? :)
If EA Studio works great on 40k bars for H1 then you should be using 40k bars for M15 as well.
What I am saying is that IT IS the number of bars that matters, not the time period.