I went to do an optimization in mt4 tester for this EA I got, from 1995 to 2017.
Then I found out it takes me 440 hours to do what, so since I didnt understand why I have to leave mt4 running for nearly 20 days I went searching and found the issue.
Seems like mt4 can use only 1 cpu core and no multi threading. Basically super slow and outdated, horrible tool for testing. Anybody got a better way to test?