If I want to choose the best browser for nexus 9, with the least lag and heat, what is best? I have Chrome.... is not so bad in using but it could take more than 6 seconds for this browser to close, sometimes in slow motion. Thanks !
The Nexus 9 is a collaboration between Google and HTC, so there's really no other answer besides Chrome. If you want something that's lighter on resources, then Opera Mini might suit your needs. It's not nearly as smooth as Chrome, though. You shouldn't have too many problems with Chrome, especially on a tablet that's as powerful as the Nexus 9. Slowdowns could be caused by too many open apps or a variety of other issues.
I think Chrome is the best for your android phone, it has all the functionality that you need in a browser, but it's my person preference perhaps due to traditionalism.