[threeseed]

This is the first time I've heard about input lag.

I've used a BT keyboard for years and am the fastest typist out of every developer I've met so clearly something is wrong with your statement.

[skMed]

I type roughly 150 WPM without many errors, though I can burst much higher. The last disconnected keyboards I tried were:

* Apple Wireless Keyboard

* Logitech K 300

* Microsoft -god-knows-what-it-was-called- from back in the day.

In all cases, I experienced stuttering or dropouts of my input at high speeds. This did not happen all the time, but it was frequent enough where I felt the need to go back to a wired keyboard (currently Filco Majestouch). Maybe I had a bad batch, or something was interfering with the signals in my homes. Either way, I don't plan on recommending wireless alternatives for quite some time.