Fixes slow initial logreading that happens when the tracker is opened while HS is running and had many games.
Fixes slow initial logreading that happens when the tracker is opened while HS is running and had many games.

bmichotte/HSTracker,bmichotte/HSTracker,jonnguy/HSTracker,ifeherva/HSTracker,ifeherva/HSTracker,jonnguy/HSTracker,jonnguy/HSTracker