Wow, is this normal?? Should I change my daughters school?

Don't stress...some children are advanced readers...but by 2nd grade it often all evens out and "later" readers can perform just as high as "early" readers (unless there is a learning disability.) Often "early" readers have very high phonics skills but aren't ready for the comprehension component necessary to get meaning from what they are reading. this is what evens it out in the end.