Hello Friends,
I just discovered a trick (after over a year of using Logos) on how to drastically speed up the passage guide. Now, I'm not sure if this is available for Logos 4, but it is in Logos 5.
Under "Guides", in the bottom left you should see an option for "Make a new guide template". After clicking this, you should be given a wide variety of options to either create a new guide from scratch, or start with the passage/exegetical templates. I started with the passage template, and removed all of the tools I don't use - the links to various sermon sites, media sites, music, world illustrations, etc. Now that it isn't pulling all of this unnecessary extra information, including having to query web sites, my new passage guide is INCREDIBLY faster. It loads for me almost immediately.
Hope this helps some people!