200 new reviews a day. Is this normal?

If you want a better idea of when your next reviews are coming up (and so you can try to not let them clump up as much) you can also search for and add the Ultimate Timeline script (by the same person as Dashboard Progress Plus, the amazing rfindley). Then if you know you have say, 200 reviews coming up, you can decide to do only 50-100 and end the review session early by using the “wrap up” button in the reviews. (Wrap Up takes the 10 items you’re currently half-done, or 4 + 6 new ones, and closes the review when you’re done those 10.) Then you can wait a few hours (or until the next day, if you wish) before you do more, in the hopes to further space out your reviews.