Backtest slow since recent mt4 update

 

Backtest in model 'control points' slowed to half speed since recent mt4 update. 

What needed 35 seconds before, needs 75 seconds  now.

I test 4 years in M5 chart without M1 data, M1 data is still deleted.

I there a way to get back to former testing speed?

 
Heiko Kendziorra:

Backtest in model 'control points' slowed to half speed since recent mt4 update. 

What needed 35 seconds before, needs 75 seconds  now.

I test 4 years in M5 chart without M1 data, M1 data is still deleted.

I there a way to get back to former testing speed?

I know the linked postings. They didn't help back then and don't help now.

 
The last MT4 update is update to 1280.
I do not think MQ did something with strategy tester, because the support of MT4 was finished by MQ, and we get new uodates just because of minor bugs fixing.