This post originally appeared on https://dynamicsnotes.com/simulating-network-issues/.
In some cases it is very useful to see how a web site would perform under certain network conditions that are worse than what you have currently. You can use this tool to simulate it: https://jagt.github.io/clumsy/. As an example, if you want to simulate what a network latency of 200ms looks like while using POS, run it on the same computer as POS and configure it with 200ms outbound.
Even if you are on a good network, with this tool you can evaluate what it would look like for someone with higher latency (or other network conditions).