Generating less lactic acid and increasing speed/repetitions is achieved by decreasing the time spent on each leg during running.

“generate the least amount of lactic acid and increase the amount of speed and repetitions that you are crossing over in the corner without the more static you are on one leg the more strength and lactic acid you essentially are producing so if you can decrease the amount of time you are on each leg the less likelihood you are to get tired as long as you're naturally a bit able to do that”