Tick Rate Explained - A lot of complaints could be addressed if it were higher.

Games and servers are more and more expensive and the quality degrades

it's becoming the new normal and it's uncacceptable

high ping players not kicked => ex on BF1 very hard to hit ; auto kicked on BF3/4 from ~100ms ping

bad optimisation of engines : on BF6 my friend had input lag, combine this with poor server performance it's unplayable