HTML player slow graphics performance (SOLVED)

I Haven’t tried the web profiler. How do I start that?
The game is just something I do to test out Defold, so there are no other players. I tried it in IE and it was slow, so I was just wondering if the HTML 5-engine has known limitations. Like I said, it looks like the game loop is slow.
There is not much to remove. Only the sprite and the tilemap are loaded at the start.
I have tinkered back and forth with different aspects of the game, so it’s possible I have some problem somewhere. Maybe something fires too many events.