why can't z8 ever fix the lag?

SO recently after that lag maintance they did i wasnt lagging at alll but unstill then ive been lagging alot my ping instead of it beeing 52 its now 64 and its spikes to 72, 84, 149, somtimes to 300 and no this is not my internet because i have full bars and excellent sternght also many of my frineds have been lagging to 1 of them even quit until it fixed so yeah please fix this stuipid lag..