In some cases, yes. Speed normally means less forgiving, but bow compainies are making huge strides in that department. Really fast flying arrows generally mean the archer has to have repeatable, and good, form. Any little thing done wrong will be amplified.

BUT, there is an aweful lot more that goes into that equation than speed alone. Arrow quality and proper spine are a major variable as well. I don't personally feel speed is as much a hinderance as it was say.....5 years ago.