Hi and welcome to Dream Views.

Your problems aren't unique. Others experience the sloppy and slow running. One of the simplest methods of attaining vividness or control is simply to affirm, out loud if need be, that you are in control of the dream.
You want to see more than through tunnel vision, try commanding your field of vision to widen.
Want to break free of the sluggish running? State your intent to run normally, or even to run at super speed.
With practice you will eventually move beyond those hindrances and onto bigger and better things.