Join Date: Feb 2011
Location: Kansas City, Mo.
Device(s): Started with the original G1, currently Nexus 4, Nexus 5, Nexus 7
Carrier: T-Mobile, Google Fiber Internet
Thanked 648 Times in 525 Posts
Never mind typing speed, I literally cannot touch the keyboard fast enough, even in utter gibberish, to cause lag on any of my devices.
Again, the info in the link you gave about the UI priorities, etc is old and no longer accurate. This was fully addressed in JB by Project Butter.
Registered Linux user #266531 since 2001. Android user since v1.0.