Uses 4-vertex buffer geometries, which is less performant than single vertex cells introduced in later releases.
Replaces each cell with an updated 64px texture after initial page load, rather than replacing cell textures on demand with 128px textures when users get closer, as later releases will do.
Features no image metadata support, selections, or layout transitions.
Uses K-means for clustering.
Built with default three.js shaders rather than raw shader materials.