Wacky Nautical Adventure!

I made this game in an effort to learn Unity. The concept was originally designed for mobile, I may port it in the future if I can improve the overall game.Use the spacebar to control the ship.Every once in a while on a restart it will load with the ship handling really weird, I dont know why! It only started when I converted it to WebGL. Please let me know if you have any ideas as to why. Thanks you!