How can I have a loop refresh every 1/10 of a second?

Hello.

I have blueprint:

How do loops refreshes every 1/10 of a second?

Because now as I change position, again I have to click through “F”.

I wish for every change of position, “ZombieOne” followed me

I would recommend using the Behavior Trees for this.
There you can give your Zombie different tasks like “PatrolRandom”, “SearchPlayer” and “FollowPlayer”.

There are some Tutorials on Youtube on how to set it up and it is really easy to make something like your zombie in there.