After the latest update in Neo 10r, there is a many issue in it, 

Battery is draining is so high and produces more heat just for using WhatsApp and the battery drains even when I'm not using the mobile 

Frame drop- in games like Roblox, BGMI, PES there is a lot of frame drop while playing after the latest update. Especially in BGMI the frame fluctuate from 120fps to 60fps making me frustrated.

Unstable OS- the app crashes are happening more often, basic apps like camera and notes is also crashing.

I would say this is the worst update IQOO has given. Fix this soon i can't even use it for normal use and the mobile is always warmer, i doesn't know when would the mobile blast.....