The client makes me lag now and the end lobby takes 7 years to join

I'm a simple user I play on a laptop no fuss right. Until the recent update which made everything run like a toaster, i had decent frames in fights now im getting like 8 just leaving the nexus not to mention the end of the game in sitting there waiting like 5 minutes to leave the game even the old client wasn't this bad. Do us a solid fix this stuff (you know what I wanted to say).