It already feels that way because of how fast you go when you eat five bushes, the fact that option is always available makes spending twenty-thousand gralats not really worth it to most people especially now that there are several warp gems.

Not sure if staff actively travel via mount but the five bush thing has always been extremely fast and something I never really liked and I'm all for removing it if it ever becomes an option.

More realistic to have a set mount speed and allow a boost through the horse shoes, remove the bush speed and then the hay you can eat gives you a temporary boost but does not stack like eating bushes did.