Holy crap
https://melv1n.com/iphone-performance-benchmarks-after-spectre-update/
Up to 50% performance drop on iphones after the spectre security patch
@fabianhjr @troubleMoney That was 10.2.1, not 11.2.x, that did that...
It was both. 10.1 -> 10.2 and 11.1 -> 11.2
https://www.geekbench.com/blog/2017/12/iphone-performance-and-battery-age/
@troubleMoney just FYI that upgrade was also the one that was involved with the "battery degradation reducing performance to maintain battery power duration" thing.