Performance ranks help with categorizing avatars into specific groups so the most intensive ones can be filtered out, and performance can be saved. This doesn't help a whole lot with crashers, however. This is building off of the post "Performance Ranks Below Very Poor" and refining it a bit. What would cause an avatar to be tagged with "Dangerous"? Having a particle emitter with a large number of particles. If the amount of particles on the emitter surpasses what would crash most users, the avatar will automatically be hidden, but can be shown manually, similar to Very Poor on Quest. When showing a "Dangerous" avatar, you will be warned that the avatar may crash VRChat. Suspicious avatars have shaders or packages not commonly used on VRChat. Unlike the Dangerous performance rank, Suspicious avatars can be shown using a setting called "Allow Suspicious Avatars". Suspicious avatars can also be shown using the "show avatar" button. Avatars in the suspicious performance rank can also be tagged as such if there's a large number of draw calls, or animations on a particle emitter that would cause the particle emitter to emit a large number of particles. Features that may be used to hide crashing weapons could be listed as "suspicious".