Lots of people remark, correctly, that Logos/Verbum runs slowly on their computers, whether laptop or desktop. Many people request help in speeding things up on the forums. There are lots of things that one can (potentially) do to speed it up to some extent, whether great or small.
Here's a list of things that I hope will prove handy. How exactly to do these things (and why) has already been discussed in other threads easily found via Google.
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1. Replace your hard drive with an SSD. This solves most speed-related problems instantly and permanently.
2. Make sure you're using Logos/Verbum 8 and that it's fully updated. Run the Update Now command to be sure of program updates and the Update Resources command to make sure that all of your resources are fully updated.
3. Use selective downloading and/or hiding resources to limit the resource on your computer / visible in your library to stuff you might actually use. After doing this or if you have decided not to trim your visible/downloaded library, run the Delete Unlicensed Resources command.
4. Delete unnecessary Visual Filters.
5. Reduce the number of Collections that you have; you can replace them with MyTags.
6. Restart Logos/Verbum and let it finish indexing.
7. Restart your computer at least once per week. Do not just always have it hibernate or sleep.
8. Add more RAM if your device has less than ~8 GB of it or so. This will have more of an effect if you already have an SSD; if you don't, lack of RAM probably isn't the major limiting factor.
9. Prune programs running in the background, etc., that are eating up system resources unnecessarily. In Windows 10, Task Manager is your friend. Pay special attention to your anti-virus software.
10. If you use Logos/Verbum relatively rarely and find that it always needs to update or index when you need to do time-sensitive work, consider booting it up occasionally between those times so that it can update and index in your spare time.
11. If you've had this installation on your computer for years, perhaps updating it from Logos/Verbum 7 or even earlier, consider using the Rebuild Index command and letting it run on its own, potentially for a long time, before trying to do anything else on that device.
12. If using Windows, use the Set Use Ngen to Yes command. To speed up the program's launch on a Mac, try setting Logos/Verbum to open directly to a blank layout, rather than to the home page or any kind of populated layout.
13. If Guides are loading slowly, consider minimizing all or nearly all of their sections before closing in order to cause them to launch faster next time.
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Veterans, did I miss anything worth briefly noting?
NB: The above list has been edited repeatedly due to feedback given below.