super press/dash display can be really slow

[Didier Roche-Tolomelli]

On some system, dash/hud/alt-tab activation is really slow to activate (something like more than 5s), even once the lenses are loaded. Then, it seems to be cached quite effenciently, but if you do something else, like for 5 minutes, then, it will get slow to redraw as well. (Multiple reports confirms about that, on not that old hardware)

[Brandon Schaefer (brandontschaefer)]

Right now there is a timer that loads the lenses if not opened first which is 60 seconds, if it was say 10 or 5 then it would get loaded before they opened the dash (hopefully). Though I am unsure how slow it is on a slower machine, this way would require just 1 line of code changed vs. lazy loading or delaying the lens activation.

This is the line of code:
http://bazaar.launchpad.net/~unity-team/unity/trunk/view/head:/plugins/unityshell/src/DashController.cpp#L54

I still see a problem when there starts to be more then 3 lenses being loaded.