That is just not right, mate. The amount of times I've said this....They sound the same as the ear pods without the wires. Honestly they would be OK in the gym but I would go with something like the jaybird run (or any other with hooks) the bose Soundsport free are great
They are noticibly clearer than the Earpods.
& by recommending Buds with hooks, I gather the Airpods aren't fitting securely in your ears? Well mine are (luckily) a perfect fit & I've been using them at gym for almost 2 years & been running with them.... they've never fallen out once.
A good fit changes ones view of many Airpod elements, such as practicality & sound quality....if they're made for your ears, then they're going to be the best accessory you've bought for your iPhone in a long time, maybe ever.
OP, there's more information in the iPhone Accessories forum btw...