Glaring plothole: speeding up Murphy wasn't necessary
So Murphy's 4 seconds slower than a pure AI-controlled bot in a course of fire. So what? He's still faster and more accurate than 99% of humans and is very heavily armored. The bots weren't used for law enforcement, so they were the improper control. The control should have been a human cop or even a SWAT/ER team. Once the results showed that Murph was plenty fast and durable enough compared to the human baseline, his imperceptibly slower response time would not have been an issue.
He outclasses anyone found on the battlefield today--speeding him up to meet the threat of common street criminals was wholly unnecessary.