M1 Data Optimization accuracy

Hello, i need some help i know the m1 open data are not so good but when i backtest a M1 result on tick data, the results 

are always very very different and bad…it's very slow to optimize on tick data so i want to know how i can use M1 data with good precision ?

For exemple low pips strategy are bad in M1, what others informations do you have ? thanks you and sorry for my english