ritual performance

when i started play poe on original ultimatum league i observed how performance has changed during that league. at start ritual was good but ultimatum was bad. they started to change it. at the end of legaue ultimatum was good but ritual got worse. few months later they add more effects to ritual. some of types ritual altars is good but some give massive fps drop.

now i meet ritual and ultimatum on map, results: ultimatum is ok but ritual ("suppressive" type of altar) is UNPLAYABLE. i really don't understand GGG. they dont see any performance differences between different types of altars?