He's already been through that phase.
Teams generally abandoned man coverages last year and this year went to multiple high safety looks to take advantage of his tendency to read deep to shallow. It took some time for him to find the patience you refer to, but find it he did. He started reading shallow to deep, sped up his decision making process and generally started dissecting defenses on a regular basis. Whne they got flustered and started showing him singe high coverage he was on it within a play or two and made them pay that way as well.
That bumpy stretch you're anticipating happened about 2 months ago.