Initial delta of Time.fps on Mac

[shoooe]

The initial delta given from FRP.Helm.Time.fps, on Mac OS X 10.10 at least, is huge. With this simple program:

view :: Signal Element
view = (\i -> traceShow i $ G.collage 800 600 [G.blank]) <~ T.fps 70

main :: IO ()
main = run defaultConfig view

I get the following numbers:

1.419062936110501e12
93.72802734375
43.881103515625
16.248779296875
16.812255859375
16.7587890625
16.449951171875
16.713134765625
16.7529296875