Scrolling a virtualized igCombo with itemTemplate issues

[Hristo]

Scrolling a vritualized igCombo with itemTemplate barely moves the list.

• ignite-ui version: 19.1
• browser: browsers on touch devices

Steps to reproduce

1. Open http://jsfiddle.net/qaro129s/ from a touch device
2. Scroll the combo list

Result

The list barely moves when touch scrolling

Expected result

Scrolling should be way more fluent as there is no itemTemplate: http://jsfiddle.net/ayevpL2n/

Attachments

Attach a sample if available, and screenshots, if applicable.