After updating to Kubuntu 14.04 Trusty Tahr, Sublime text performance has degraded significantly.

Scrolling and selecting text now feels very sluggish. I’ve used “scroll_speed”: 0, to fix the scrolling speed issue somewhat, but selecting blocks of text, or scrolling using the minimap is still very slow and laggy.

In 13.10 there where no issues.

Using AMD fglrx_13.350, with ST 3059