V1.7 is okay with default setting but yes, you need to see the most profitable setting in the lot size and TP.
let say with capital $5K, lot size 0.01 will run safely in major pairs but if you use tp in money $100 it will bring a slow profit.
the important one is to find the good combination between lot size and TP in money according to your equity.
making money is easy in forex, losing money is even easier...