Recently, my meizu phone started lagging, and after a while, I decided to reinstall my system. After a couple of reinstallations, i realised, the problem was in google services, because my phone started to lag exactly after google services installation. And the worst thing is that I can't use any of 50% of my apps anymore, because they all need a GS to work.
P.S. I installed GS with google installer from meizu app store.