Yeah. There's some overlap, but polepole generally means "slowly"

https://glosbe.com/sw/en/taratibu
https://glosbe.com/sw/en/polepole

*and taratibu, I was told, also is carefully/cautious (so in that sense slowly) polepole has more the connotation of being relaxed, slow...

this is the kind of stuff i love about learning other languages. I immediately understood what it meant--like a mom or teacher telling her kids to walk that way, not like a thundering herd!--but it's such a poetic way of saying it, so different from how we'd say it in English. I love expressions like this.