6.6 Frame drops possible sound bug (Mac)

Hey Riot guys, after patching 6.6 i've experienced massive frame drops in laning and teamfighting with weird sound issues (robotic-like voices) my MacBook Air late 2010 El Capitan is up to date and soooooooo many other Mac users have the exact same problems, so don't try to send me that Copy/Paste answer "Try to visit the FPS Troubleshoting or send a ticket, let me know if that helps" it's possible that it's a sound bug, but it can be anything, there are many additions in the last patch, like the new scoreboard (Tab) animations and even the new rift herald icon and timer, please notice us, it's sad that you make us feel like the only way for being noticed is spamming and start 1000 threads and that you ignore PBE Users that experienced this problem so bad and you still release the patch in the main server, Bilgewater crash/red texture/fps drops/sound issues story is repeating

(This is my NA Account, i'm a level 30 from LAN, but since it's even harder to get some attention there, i try here)