I've done reading online and found that I'm not the only one who thinks the thunder during a lighting storm is excessive. Most lightning storms I've experienced in north america, the lightning strikes are at least 30 seconds apart, not back to back to back as represented in the game. If you accelerate time during a lightning storm, it practically blows your speakers.
This is the definitive zombie survival game, and I know I'm splitting hairs here. But to fix this would only improve upon perfection.
Currently sitting at close to 300 hours on this game, so I'm not just being butthurt about a tiny issue. It's been around for a while.