JuliaDiffEq Vern9() solver taking too long

[kristoffer.carlsson]

@ChrisRackauckas

Julia 1.1 is what we’re still testing on since 1.2 came out last week. I don’t know if there’s a performance regression there

Correct me if I am wrong but it seems that the previous results was on 1.0.3:

@Prince_Mahajan

I think my diffeq package is up to date but my julia kernel is 1.0.3 I think. I am gonna update every thing and try again.