Is Bolt Cheating?

Hello. I just watched Usain Bolt run his 200 metre heat. He won it, in spite of slowing down.
He won the 100 metre gold medal the same way, setting a world record of 9.69 seconds while slowing down.
In theory, these shorter track records should be lasting longer than long distance records. The 1500 metres was just run, and the winning time was 6 seconds higher than world record pace. It wasn't even an Olympic record.
So how is Usain Bolt able to run a 9.69 clean 20 years after Ben Johnson ran a 9.79 pumped full of steriods? Is Bolt that talented? Or is he cheating?
Unfortunately track reminds me of amateur golf tournament net prize winners. Many golfers have a handicap, which when suntracted from their actual score leaves a net score. It's easy to cheat the system, and have an artificially high handicap. Those people are called sandbaggers.
Because of sandbaggers, everyone thinks a net winner is a sandbagger, even if they aren't. The same holds true for track.
Here's hoping Bolt is clean.

Regards,
Steve