In career mode, the kick speed is a slow motion.

Did you level up the kick you're using and take up the kick speed stat? 

Sorry, I didn't get that across very well.
 It is not the kick speed, but the motion of the kick that is wrong.

And I think it is strange that the motion is not realistic.
This will not change no matter how much you enhance it (5star).
I don't understand why I am the only one talking about this issue.
Doesn't everyone else find it strange?
Try starting career mode with Tatsuro Taira and use middle and low kicks.
I do not speak English. I am using a translation app so I hope what I want to say will be understood properly.
Thank you.