Textfield with VirtualScroll cause slow response?

We’ve placed a textfield with no processing or binding whatsoever in the header, above a VirtualScroll loaded with over 10k Items. Problem is, when we try to click or type anything in that textfield, it responds 2-3 seconds later. Although scrolling through 10k items seems to be smooth. Is this supposed to happen?

Nevermind, we found out if the textfield is bound by Angular using ng-bind, it lags for every interaction with it.