How do I increase the Modelling Quality percentage?

How do I increase the Modelling Quality percentage, from 60% to 90%, using Strategy Tester?
You have to download more deep History on 1 minute period.
Start your test no earlier than the earliest date for which you have 1 minute data.
phy wrote >>
Start your test no earlier than the earliest date for which you have 1 minute data.

Thanks!!!