This is a very nice little piece by Sor. It's a great warm-up. I usually heard it played faster but wouldn't really suggest that you do that. I tend to like slower interpretations anyways
I do suggest, though, that you play through the piece and identify the spots that make string noise like squeaks and bumps and work that out. Other than that you are on your way to making it sound awesome!
"One should always eat muffins quite calmly. It is the only way to eat them."