If I use this indicator using higher time frame, lets say I am using M5 chart and I put H1 in the indicator setting then I can only use 1 or 2 charts as it freezes the platform if I use more charts. This is very frustrating. 

As I explained in private messages, this indicator uses an algorithm that requires relatively heavier processing than regular indicators. Unfortunately, there is no way to make it faster on a CPU, especially if you're using a slower computer with limited hardware resources. However, the good news is that I plan to add a new algorithm to this indicator, which will require far fewer calculations. Although I haven't received similar feedback regarding the issue you mentioned, I am planning to implement the new algorithm in the next version. Thank you for your feedback.