This is so easy it’s stupid. 1. Intentional walk is automatic. 2. Stop batters from stepping out of the box between pitches. 3. Stop the seventh inning stretch nonsense. 4. Realign the strike zone back to knees and letters. 5. Walks must RUN to first base or you’re out. 6. Maximum 3 throws to first to hold runner on. 7. Get rid of instant replays.
I’d add:
8. You can only dress 18 players for a game (fewer subs, especially pitching changes, means quicker games)
9. Regular season games tied after 9 innings go down as ties.