Climbing the towers on Rhea Island in Sonic Frontiers is a fair bit more difficult than most of the open-world platforming challenges on previous islands, between the length and the skill required to avoid falling. To keep Sonic under control, it's likely you'll have to not boost at all or extremely sparingly, and I don't know if it was intentional or not, but that really drives home the feeling that Sonic is barely holding it together; because of the corruption, he can't run at full speed, or at least not for as long as he/you want to.