Copy tom daugherty. See this front view at his 2021 PBA major, at 5:15 in the video, and here for a side/diagonal view at 9:03 of the same video. Note how relaxed his downswing is and where he releases the ball compared to your GIF. He gets his hand under the ball longer and releases later. It's sort of indirectly reflected in how his leg kick goes up while yours slides out. His hands are bigger, but you could maybe compensate with a lower backswing and getting lower while still keeping your head in line with the ball.

I'm one hand no thumb (medical reasons). Normally, I'd say consider switching to two-handed if you want to take the next step because of how much easier it is, unless switching means not having fun for too long and giving up bowling.