I am attempting to use custom feeds but they just seem really slow to search on. Due to the nature of our company we use almost every 10.1-255.0.0 cidr range. The feed is designed just to segment out each range so I can search on it. But when I attempt to do a search on the feed or just view the meta of feed.name, it takes more than ten minutes to load an hour. Anyone else seeing this?
What you have described sounds like an index problem during investigation rather than the feeds themslevs.
Check the index settings for the meta key that you are writing the data to. Any changes to index settings, and any custom meta keys you have created, should be in the index-concentrator-custom.xml on the concentrator. Make sure it is set to level="IndexValues" and give it an appropriate ValueMax setting. Here is an example of what the entry should look like.
<key description="Threat Source" format="Text" level="IndexValues" valueMax="250000" name="threat.source"/>