Remap immutable base candidates and cache only changed-wire indexes so block-heavy drawings avoid rebuilding millions of primitives on pointer movement. Build 3D BVHs lazily for plan views.
Keep resident wires, draw depths, GPU slabs, and edit history incremental across entity changes. Defer rollover work to avoid cursor jumps on dense drawings.
Replace full-document snapshots with Arc first-touch deltas and batch cache invalidation. Reuse interaction and GPU category caches across unrelated edits.
Hakan Seven