Backtesting with different broker data

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After my broker close down after the chf issue

I sign up a new mt5 broker and started optimizing my EA. I was surprise on the speed that it was being optimized.

question

1. is there different format of history data

2. why is there a difference in speed? 

 
doshur:

After my broker close down after the chf issue

I sign up a new mt5 broker and started optimizing my EA. I was surprise on the speed that it was being optimized.

question

1. is there different format of history data

2. why is there a difference in speed? 

Your old broker was using Depth Of Market, which result in a lot more ticks than a "standard" broker.

Do you have a report from an old backtest ? Check the number of ticks.

 
angevoyageur:

Your old broker was using Depth Of Market, which result in a lot more ticks than a "standard" broker.

Do you have a report from an old backtest ? Check the number of ticks.

I don't have the old copy. When I back test with my new broker, the parameters are not so off from the previous one.

Would more ticks makes the parameter a lot different?

Is the back test using max spread recorded on m1 data? 

 
my old broker 44211909

my new broker 20383135

 

this is 2x the ticks... what is the effect of this? 

 
doshur:
my old broker 44211909

my new broker 20383135

 

this is 2x the ticks... what is the effect of this? 

It's at least 2 more ticks to process, so at least 2 times slower.
 
angevoyageur:
It's at least 2 more ticks to process, so at least 2 times slower.
does it affect the parameters when I optimize?
 
doshur:
does it affect the parameters when I optimize?
It can, depends of the strategy.
 
angevoyageur:
It can, depends of the strategy.
thank u
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