He owned ChessBase but used it mostly as a fancy database to look up grandmaster games he didn't fully understand. His problem wasn't a lack of effort; it was a lack of targeted training. He’d watch random YouTube lessons, solve a few puzzles, then lose the same way again: to a simple tactical shot or a positional squeeze he didn't see coming.
The Abuser is a master of the clock. They know that a human in time trouble is a different beast than a human with plenty of time. We will learn techniques to induce panic, to complicate the position just as the time control approaches, turning a drawish position into a winning one on the scoreboard.
: Volumes by Jan Markos on Queens and Rooks are considered "monster" resources for advanced positional play.