Autovotes in and of itself don't guarantee higher profit than manual votes, not sure how much you know about voting but it's pretty flexible in ways where that difference doesn't matter. The only time you "lose out" on rewards is if you leave your account sitting at 100% voting power, anything under that is the same, unless you go way too low and don't have enough stake to reach the minimum 0.001 threshold.
Been thinking about revisiting a post about how voting power and the reward pool works since I'm seeing a lot of new users and followers lately but if you have any questions feel free to shoot.
Something that may make you realize how it works and what I'm referring to is:
If you are at 100% voting power, your 100% upvote burns 2% voting mana taking you down to 98% voting mana. This means that say if you have 100k HP and the price of Hive is where this would get you a $1.00 upvote, your next 100% upvote at 98% voting mana would consume 2% less mana (out of 2% = 1.98%) thus granting you a $0.98 upvote.
So for instance if you sit at 50% voting mana, your "100% upvote" isn't 100% but 50%, it'd only burn 1% mana instead of 2% and if you want to stay at 50% voting mana you'd have to cast twice as many votes that day (20x 100% upvotes instead of 10).
I have to say I know almost nothing as I only now the very basics thats the other reason of my constant confusion