Can the grafana dashboard metric percentiles of bandwidth/latency in the fio ES index can use compare different run?

We know percentiles often help found the outlier such as node failure or bug.
But for test normal system, can we judge that a run is better than another run by only look at the metric percentiles ? or What is the your suggest to found which run or which benchmark is better using grafana, not using benckmark-compare repo?

And what was the initial purpose of the fio percentiles in the below link?

Question is from the fio dashboard.json https://github.com/cloud-bulldozer/arsenal/blob/master/fio-distributed/grafana/6.3.0/dashboard.json.