BuzzCalc stores each and every word retrieved. You probably don't need to keep all of these forever. How long should words be kept?
This depends on how many feeds you are watching how much disk space is available. Monitor the data and your disk drive here. If the size becomes very big, it can slow down your PC.
First try to compact the database. If the size is still too big, reduce the number of days above accordingly.
This may take quite a while. A message will appear next to the button when done.
Even though most words are unimportant and should be purged, some words that you are tracking should be kept infinitely.
List them here and when the database periodically trims itself down to the number of days you specified by purging old data, fetches containing these words will not get deleted.