Could be. One of Coco's favorite things to do is to start in my bedroom, sprint through the living room, dining room, kitchen, back to the living room then up an 8 foot tall kitty tower. Then she comes down the tower and snuggles in my lap.I don't know if this is a factor or not, but my youngest cat is either five or six, and four are 10. And even though they're more active now, running around and playing in an RV still makes them most likely not as active as kitties in a larger space.