[kronolith] webdav ics performance issues

[gimili]

Elliot Anders wrote:
> We're getting tons of complaints about the performance of Sunbird and 
> the webdav ics provider. We realize that this is somewhat related to 
> Sunbird's slowness of calendar display and it's inability to reload 
> remote calendars in the background, but have also seen horde/kronolith 
> respond extremely slowly with the requested file.
Have you tried the thunderbird Lightning calendar addon?  Perhaps it 
works better?
https://addons.mozilla.org/en-US/thunderbird/addon/2313