Peach not ripening properly

[Plantinyum]

My peach does not ripen as it should , the fruits get a light green to light yellow color and just fall from the tree, which does not show any deficiencies or simply any sighs that there's a problem. I feel like they are also not as sweet as can be, this year's crop is dune ,but is there something I can do for the next year's one?? Its true that the tree is loaded with fruit but I dont think that this is the reason since I have seen peach trees with such fruit sets , but their fruits ripen to a typical  yellow- red coloration. I'm bummed by this tree, any advise is appreciated !!