u/Zealousideal-Cap5150

We are fostering a one year old shar pei. When he first moved in he was a bit wary but enjoyed going for walks and playing with our other dog. After about 2-3 months he’s stopped wanting to go for a walk, he walks so slowly we’re practically stood still! He also no longer plays with our other dog.
He’s been to the vets who can’t find anything wrong with him.
Anyone got any ideas?
His owner comes to see him roughly once a week and takes him for a walk and he’s as slow on their walks
Other than that he is very settled, gets lots of love and affection