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The second horribly wrong thing is that the sentence uses the word “as” to say that these things take about the same length of time. But they can’t possibly happen at the same time. It might take several seconds for Eric to approach. It takes a tenth of a second for Joe to throw the punch.
Can’t the reader figure out the timing problem? Yes, again your reader can use logic to mentally speed up the approach of Eric or slow down Joe’s punch. But either way, the movie looks all wrong in your reader’s brain.