I am running Debian testing and ever since the Gnome 3.14 update, Synaptic has been very slow to start (gets stuck on "Reading state information" for at least half a minute). It is also slow to load large package lists. I looked into my System Monitor and noticed that Caribou was ballooning in memory usage (400MB) and kept growing every time I started Synaptic. Toggling Screen Keyboard on and off in Universal Access kills off the Caribou process and Synaptic behavior returns to normal.

So there's several things wrong with this:
1.) Caribou gets started on system start even though Screen Keyboard is turned off. Toggling setting on and off turns Caribou off.
2.) Caribou memory usage bloats out of control when launching Synaptic
3.) Synaptic performance is unusable when Caribou is enabled.

Expected behavior:
1.) Caribou does not get started unless Screen Keyboard is enabled
2.) Caribou memory usage should probably stay relatively low.
3.) Synaptic should be fast even when Caribou is enabled.