Currently our code involving filmstirp, network events tracing does not check account for the variablity that could happen due to Network contention, CPU contention, hardware etc.

This issue acts as a placeholder to start tackling those issues in a much broader sense and arrive at a solution which can produce a performane report that would not be influenced.

Lighthouse team has done an amazing job of explaning about various variablity problems in length on their docs - https://github.com/GoogleChrome/lighthouse/blob/master/docs/variability.md

More details to follow up.