Index sizes are pretty similar (consider the same). Having the index end-to-end encrypted imposes some limitations though. You have to do several requests when

Index sizes are pretty similar (consider the same). Having the index end-to-end encrypted imposes some limitations though. You have to do several requests when you want to do one query which is obviously slower. Though, still practical. And since the CPU logic happens on the client, in some cases (many simultaneous clients) the performance can be actually better.