It's not a bug or any of the sort, it might be more of a misunderstanding of how C2's works.
BUT 92 frames for a running animation!!!!!????????? Surely you can take out a bunch of frames and get a decent animation. But for 92 frames you would probably need an animation speed of 1.5x to 2x the number of frames (which in your case is 92) to get it to look right. But really I would recommend lowering your frames if you want to optimize your game. It's generally good practice.
But to solve your problem:
On the construct 2 editor set your animation speed to 160 and test it out again. If its still a bit to slow then keep raising it till you get it to the speed you want.
For my animations I usually want an animation speed that is double or atleast almost double the number of frames I have. So if I have 9 frames then I set the animation speed on the editor to 15. 1.7x9 = 15 which is almost 18.
P.S. Don't confuse frame speed with animation speed