GameUpdate — SpeedOverflow Steam update #668893

Greatly optimized the lag in the later stages. At least the 4090 shouldn't lag like a PowerPoint presentation now... Added new upgrade trees Gravel Engulfed, rolling stones advancing through quicksand. More gravel, and bigger and coarser rolling stones~ Melodic Break Causing enemies to resonate and sing along, High-frequency attack enhancer, super strong AOE in the later stages Chime Shock, Melodic Break advancement Easier triggering of chorus, more additional effects