Something like --only-ticks-over <ms> in profiler feature.

This will add an ability to monitor spikes for example at the moment you make a sampling with given threshold and wanna know how much spikes occurred during recording and if this is enough for some or another situation, without spamming /spark tps command.

I don't find percentage threshold clear enough, as average TPS during 6 seconds may vary and there should be something more "stable" to monitor.