1. "You used to travel way more than I did." 2. "You used to travel way more than I have." 3. "You used to travel way more than I've traveled."
Sentence 1 is grammatically correct and appropriate. It refers to a time (or more generally, a range of time, perhaps many years long) in the past, and compares how much travelling "you" did, with how much travelling "I" did, during that t