Cap decoded snapshots and queued GPU work so a slow presentation path
cannot accumulate frames indefinitely.
Coalesce deferred damage and retry the latest image when a texture
returns, including while JIT rendering is idle.
Route input through a dedicated high-priority stream, send pointer
motion as cumulative datagrams, and recover suspected loss reliably.
Reduce downstream input queuing with age-aware coalescing and input
thread scheduling.
