Using a few languages/compilers/interpreters I play with—not necessarily my favourites, though.
Run make for the default fib(40),
or make N=45, or even make N=50 to see them crying,
rfib_codon : Computed fib(50) = 12586269025 recursively in 36.4295 seconds
rfib_c : Computed fib(50) = 12586269025 recursively in 39.291117 seconds
rfib_crystal : Computed fib(50) = 12586269025 recursively in 44.147242417 seconds
rfib_go : Computed fib(50) = 12586269025 recursively in 49.2525185 seconds
rfib.jl : Computed fib(50) = 12586269025 recursively in 49.573153 seconds
rfib-chez.scm : Computed fib(50) = 12586269025 recursively in 68.317456 seconds
rfib_gerbil : Computed fib(50) = 12586269025 recursively in 72.8179349899292 seconds
rfib.rkt : Computed fib(50) = 12586269025 recursively in 75.96952099609375 seconds
rfib.luajit : Computed fib(50) = 12586269025 recursively in 101.783914 seconds
rfib.pypy : Computed fib(50) = 12586269025 recursively in 113.09507513046265 seconds
rfib_gambit : Computed fib(50) = 12586269025 recursively in 147.76602005958557 seconds
rfib_sbcl : Computed fib(50) = 12586269025 recursively in 351.50543 seconds
rfib_chicken : Computed fib(50) = 12586269025 recursively in 898.967 seconds
rfib.py : Computed fib(50) = 12586269025 recursively in 1453.3824651241302 seconds