Do this first.
Scheduling and Expirations
How often feeds will be updated. ? set to :Every 10 Min.
Maximum number of items to import for each feed. set to 5
Activation and Post Type Settings under auto post
Check to Activate this Feature
How often to import feeds (NOTE: Importing of feeds comes from the feed item database. Make sure that database is updated to get the most recent feeds.) set to Every 15 Min.
Default status of posts set to publish
Default post format set to Standard
Fetch Quantity Settings
Number of Items per Feed to Fetch? set to 3
Total Number of Entries per Fetch ?(Go here to see how to set this option) set to : 50
save and fetch feeds
this is for testing only,you can change the numbers later.