When you emailed me about this a few weeks ago I played around a bit with the shader, and just creating fewer blobs made the problem go away (reducing "for (int i = 0; i < 15; i += 1) {" to 5 in the "void main"), but I didn't really have the time to investigate in-depth or see what kind of visual effects that would give (dealing with this minified JS isn't exactly fun and I never worked with OpenGL shaders either), but just FYI.

Good to hear it's not just me though (and the effects also aren't disabled for me either).