That’s almost 5 pounds a week! I don’t see how you could think that’s slow!! That’s great! Congrats!!
Stop comparing yourself to others. You have no idea what their starting weight is, their height, or if they are even telling the truth. My suggestion is to measure yourself, and only weight yourself every couple of weeks or so. When you aren’t seeing the pounds come off, you’ll see the inches coming off!
I had to stay away from these sites for a while too because I kept comparing journey to others. Just stick to your plan and keep up the great work!!