Performance comparison, Julia is a slower than Mojo, am I doing something wrong?

[gganapat]

This code doesn’t give the right answer - https://discourse.julialang.org/t/simple-recursive-fibonaci-example-how-to-make-it-faster/32369/15

fibval(50) gives 20365011074
fib(50) gives 12586269025
Fibonacci[50] gives 12586269025 # Mathematica code.

What gives?

gani –