Frequent stopping, just visually uncomfortable looking. As well as when I left to go to the locker room after my 30 mins I came back and they vanished, a part of me wanted to tell them to go at their pace not mine but everyone has to learn on their own.
Not even In a problematic way but while I was at the gym these three obese people come onto the treadmills next to me and I became genuinely concerned as they tried to keep up with me. I mean like hands on the rails, breathing hard, when I sped up so did they and they kept lookin