Latency from a general point of view is a time delay between the cause and the effect of some physical change in the system being observed.

What is a good latency?

So now that we see high latency means a delay in data transmission, what is considered “good” latency when it comes to online games? Typically, anything at 100ms is acceptable for gaming. However, the 20ms to 40ms range is considered optimal.

Is 40 ms latency good?

The difference between high and low latency

Low latency is ideal as this means you are experiencing smoother gameplay. Generally, an acceptable latency (or ping) is anywhere around 40 – 60 milliseconds (ms) or lower, while a speed of over 100ms will usually mean a noticeable lag in gaming.