Momentum investing in NIFTY 50.

While using RS momentum strategy for NIFTY 50 against Emerging Markets ETF, I am observing that on Daily time frame with 55 time-period this strategy is showing nice backtest results. For 2 hourly, time period is 123. On Weekly time frame, this strategy is not showing much good results.

I guess by doing mother daughter analysis, we can improve results a lot.