Thank you for the praise. The lag likely stems from how we implemented the echo ping, where we used URP spot lights along the wavefront. In hindsight, a better design would have been to create a custom shader like how we made the jellyfish and boids glow. We've attempted to fix the performance problems by lowering the light count and disabling shadow casting for the ping lights. The problem with being unable to progress in one of the levels has been fixed.