Comment by quuxplusone

I have no special information, but it could just be Amdahl's Law. If one guy (or bot) checked in 5GB of binaries before you thought to enable git-lfs, then that's not a 100/25 ratio, it's a 95/20 ratio. And if it was 10GB, that's a 90/15 ratio, and so on. IIUC, the old un-LFS'ed binaries remain in the history unless you actively `git lfs migrate` and rewrite your whole history, which they might not want (or care enough) to do.