Hi! Thank You for taking Your time to write a review! I would like to use the reviews to once in a while improve my AddOn I developed in my spare time, but I cannot really see what exactly you're referring to.
Could You please explain what exactly about this AddOn is slow on YouTube? Does it take too long to activate (normally percieved as a flash when loading a page) or do You have the feeling it slows down your browser a lot? Depending on the answers, it might be useful to know on which device specs You experience this or what the conditions (e.g. network speed) are.
Thank You!