Unfortunately, out of everything that I've ever seen, there really is no way to speed it up.
Increased E levels won't do a darned thing. Because the body has a chemical compound called SHBG (which increases as E levels go up,) and renders the excess useless to the body. In fact, I have a theory that SHBG is the reason why it takes the body something like 6 months to really get going with the HRT changes, because the body's SHBG is used to binding to testosterone, and bonds more freely to it, so it takes a LONG time for the body's SHBG levels to reset to being used to binding to estrogen once the T is gone, and as such it takes that long for the E to really begin doing much.
Really the key to HRT success seems to be sustained levels of testosterone that are within the average female range of about 25-95. consistent T levels will let the body re-equilibrate itself to running on E properly, and then the changes will start. And messing with this balance will only slow you down even more because it will take a long time to re-equilibrate again. So the only thing to do is really get your hormone levels checked, make sure that they're consistently within the right ranges, and if that's true, then you're good to go.
So yeah... there's not much you can do. Just let it happen. It's hard as hell to feel like nothing's changing, and wishing it would go faster, but that's just the reality of transition unfortunately. I don't recall a single person on these forums EVER saying that it was going too fast and they wished HRT would go slower. EVERYONE wishes that it would go faster. Welcome to the family!