Simulate varying latency for network request in Chrome
Solution 1:
DevTools technical writer here. We have network throttling in the Network panel:
But that creates a steady throttled state. As of Chrome 68 we don't have any feature for randomizing the amount of throttling within a given range.
You might be able to achieve this using Puppeteer.
Solution 2:
I think it would possible, creating an extension and use the Chrome debugger and Network domain