I'm disappointed by this development. I thought he was cooking up some scheme to steal some canon power for himself, but the author just went and handed him some made-up method to grow stronger. It's not entirely bad, but it definitely is disappointing.
although its sad, but 10/10 for being realistic. He will fight against nature to acquire power, instead of being born with it or getting a golden finger as a transmigrator...Kudos
Quantity of chakra is not everything, physical aptitude and high mastery of jutsu is more important. The best example is Naruto, even though he has infinite chakra, his strength only grew after mastering the Rasengan and acquiring Kurama mode.
That's exactly what I was afraid of.
Even if you are a reincarnated person, you are not the only one who works hard everyday so what's make you different to allow you to grow and become extremely OP?
Unless of course you have a golden finger...