Please post PT3 issues in the PT3 section - PAHud is a separate application which only works with PT2.
Are you using Beta 29.1? (check the title bar of PT3)
If not, please update.
Download pagePT3 Build History / Release NotesHave you defragmented your hard-drive and run full housekeeping recently? Both of these will improve performance.
Database Management & Maintenance GuideAlso check that your
HUD Options aren't causing problems, for instance by preventing use of the cache.
Another cause of slowness can be old hand history files - please read this
Tutorial - Preventing Duplicates.
If you still have problems after that please
report your problem so that we can investigate further.