Intel 8080 bottleneck made classic 47-year-old Space Invaders arcade game run faster as enemies died — expert coder asserts 'hardware accident' to blame

https://www.tomshardware.com/video-games/retro-gaming/space-invaders-arcade-game-ran-faster-as-enemies-died-due-to-intel-8080-bottleneck-expert-coder-asserts-hardware-accident-to-blame