Use a higher gear on 0% inclines? Once you get moving it takes very little effort to keep the bike going at a pretty good speed.

I feel like the sweaty folk are all in 1st gear because it’s easier to pedal, but they have to be constantly pumping their legs to maintain speed, so elevated heart rate causes excessive perspiration.

Also, like everyone else has already said, ebikes can help give you a break when needed and also help with the dreaded hills and steep inclines.