Help for a lua script needed - the state animation plays way too fast!!

[SonikkuBoy]

addHook("ThinkFrame", do
    for player in players.iterate
        if player.mo.skin == "earlysonic"
        and not (player.mo.state == S_PLAY_PAIN)
        and not (player.mo.state == S_PLAY_DEAD)
        and (P_IsObjectOnGround(player.mo) == false) then
        player.mo.state = S_PLAY_WALK
        end
    end
end)

This is a lua script I wrote, it should make Sonic play the walk animation whenever he's in the air except when getting hit or dying.
It's functionnal, but the S_PLAY_WALK state plays too fast for my liking. Any thoughts on how I could slow it down? Thank you!