Efficiency Latency Tuning Wireless 
Smashing Magazine
AUGUST 22, 2021
Because we are dealing with network protocols here, we will mainly look at network aspects, of which two are most important: latency and bandwidth. Latency can be roughly defined as the time it takes to send a packet from point A (say, the client) to point B (the server). Two-way latency is often called round-trip time (RTT).
Smashing Magazine
SEPTEMBER 6, 2021
For example, you could reduce compression efficiency , because that works better with more data. Finally, not inlining resources has an added latency cost because the file needs to be requested. As such, a micro-optimization is, again, how you probably need to fine-tune things on a low level to really benefit from it.
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