There appears to be a significant performance difference between the view modes of 'Status of triggers'.

I encounter this issue when 'All' for group and host is chosen (~1K hosts, ~40K(~400) triggers(active).
In 'Normal view' mode the page is updated within 3 seconds.
In 'Fullscreen' mode the page won't get updated (canceled after ~3 minutes). All to me known timeouts (httpd, PHP, Profile) have been set to 5 minutes. There seems to be another timeout, however there should not be such an difference in runtime for the both modes.

Haven't taken a look into the source code yet. Are there different queries used by each mode?