Hello,

I have problem with slow calculation of custom indicator in strategy.
I have Custom ZigZag indicator (in attachment). It have additional arrows.
I use this indicator in strategy to calculate. I need use it evry one second (the same result as every tick) and it seems that this idicator is calculated very slow,
I return message if arrow will accured and I print date/time of bar on which it accure.
and I see that there is big shift (delay) in calculating:




In Messages window I receive:



So it means that this indicator is calculated very slow.
What can I do to calculate it in real time, without delay?

Is it really necessary to calculate over 1000 values each time? Do the indicator values on previous candles change? If not, consider storing the previous indicator results in an array and on every subsequent candle calculate the indicator only over the last candle.

Generally it is not necessary. It is necessary if I receive arrow. But I made this example to better show slow of this calculation. In practice if I only calculate 2 past value and once per 20-30 sec calculate 1000 value which I need to find last 3 peaks on zigzag. I such situation I receive about 10-20 sec delay. Not always but often. And it is also to big delay for me.
Where is the problem? in downloading data for calculation or where? (because CPU seems to not work hard).

If the indicator is recalculate-all then it may cause a big performance difference as on every calculation it calculates over 4000 candles. Please check if that is the case.