The volume level on Threepio’s new line sounds too low. It came off as quiet on playback.
It sounds to me about the same level as the surrounding dialogue on either side and as the original line.
I agree that the volume is fine but I do think the line sticks out a bit. It’s a bit higher pitched and nasal sounding than Threepio’s surrounding dialogue. Personally, I never had a problem with the original line in the context of your edits, since one could interpret that he’s talking about getting the hang of piloting the ship, which doesn’t contradict anything about his newly established backstory.