If you allow a lot of old hand history files to build up then the process of reading and checking the old files can take quite a long time and cause delays in starting to import any new hands that you are currently playing, and therefore delay the appearance and updates of the HUD.
Note: If you are playing at a site on the MicroGaming network then the rest of this tutorial does not apply to you. MicroGaming writes hand histories to a database file which suffers from the same problem, but the solution is different. Please read the "Configuring the MicroGaming Network" section of the MicroGaming Configuration Guide for what you need to do instead.
To avoid this situation you should leave the Move Processed Files To option in PokerTracker 4 enabled. To access this option go to Configure > Sites & Import Options and click the Preferences tab.
This means that when an Auto Import is stopped PT4 will move any files that it has read ("processed") to the configured folder. By default this 'processed' folder is
Mac OS X:
You can change which folder the files are moved to but it is very important that the 'processed' folder is completely separate from any folders which you auto import from.
If you configure PokerTracker 4 to move files to a folder where they are imported from (including subfolders) then the files will be continually re-read and moved back to the same place and read again.
Do NOT configure 'move processed files to' to move the files to a subfolder of your hand history folder!
Do NOT configure Auto Import to import from the 'processed' folder!
Note: Some poker sites lock the hand history files while the table windows are open and this means they can't be moved so you may need to close all the tables before stopping auto import to allow the files to be moved.