Slow Physics on Internet Explorer

Hi,

I created a game, it runs smooth on Chrome, Firefox, iOS devices, Android devices, even on iPad2 Mini (big resolution to weak CPU ratio)...

But very slow on internet Explorer, the slow-down occurs when the game playing about 50-70 small (~20x20px) triangle physic objects.

Am I the only one to have that issue? Any suggestions?

Thank you.

What version of IE? What's your OS? Have you tried on other computers?

Personally I have tried a few games with Edge on Windows 10 and they all run pretty good.

To be honest, I cant reproduce it either, but our QA team found that bug and it happens only in IE.

So I have to ask because I have no clue what is the problem....

We both tested on 11.0.9600

you should try to get an fps counter in there to see, by default the physics are not framerate independant.

I got it!!!

I reproduced the bug!

It happenig only when the Intenet-Explorer Dev-Tool (F12) is running.

Look, I made a small demo with FPS monitors, one with dev tools opened one without...

one way to "correct" the slowdown would be to change the stepping mode to be framerate independant, but it might completely ruin the game though, it's something to try out.

That's expected.. it will also run slower if you run debug preview in C2. If you absolutely must have it opened while testing your game, just resize your game to a smaller window and it should run fine while still having the dev tool running.

I've also noticed that if you detach the debugger, so it's in it's own window, it runs a bit better.