The character sheet is disappointing for an AD&D RPG. Sure we find all the basic information (in many screen in fact, why this redundancy?) but I really think it could be greatly improved. Have a look to the character sheets of the BG series or, from our time, Kingmaker Pathfinder and Pillars of Eternity.
My friend, this isn't ADnD.
It hasn't been Advanced Dungeons and Dragons since second edition in the 90s.
This is Dungeons and Dragons 5th Edition.
I don't really understand what you issue with the Charactersheet is? It shows exactly the things you'd get from a DnD5e Character Sheet. At least point out exactly what you are missing?