Quick answer: Use a compact binary format with quantized fields, bit-packing, and no redundant data, sending only what the receiver needs at the precision the game requires.
Verbose serialization wastes bandwidth on every packet. A compact format pays off continuously. Here is how.
How to fix it
1. Use compact binary
Serialize to a tight binary layout rather than a verbose text or self-describing format.
2. Quantize and bit-pack
Send positions and values at game-appropriate precision and pack flags into bits.
3. Send only what is needed
Omit data the receiver can derive or does not need so each message carries only essential information.
Catching the ones you can't reproduce
The hardest version of this to fix is the one you can't reproduce — it only happens on a player's hardware, OS, driver, or save state, under conditions that simply aren't present on your machine. A report that says “it crashed” or “it froze” gives you nothing to act on, so the bug survives release after release while quietly costing you players.
Automatic error capture closes that gap. Each failure arrives with its full stack trace, the device and OS, the build number, and a breadcrumb trail of what the player did right before it broke, so even a failure you have never seen becomes a specific, reproducible issue. Fold identical failures into one signature ranked by how many players each hits, and your worklist sorts itself worst-first instead of arriving as a stream of vague complaints.
This is where a tool like Bugnet earns its place. Its SDK captures every backend error automatically with the full stack trace plus device, OS, memory, build, and game-state context, folds duplicates into one grouped issue with an occurrence count, and ties each to the build it first appeared on — so you fix the problem that hurts the most players first and confirm it is gone when its signature disappears from the next release.
Most of the time the fix is small. Seeing the failure clearly is the part that actually costs you.