> I suppose the difference could be the processor (this laptop has an Intel Core i7-3820Q processor). In addition to compacting the FTM file daily after working with the information I have background optimization of the computer's two hard disk drives too. I am running on a desktop PC with a SandyBridge i7 - 2600 cpu and 142,401 people it the file. My guess is that file size has a LOT to do with perceived performance. I have run files of 50K people, and the program is MUCH faster! I run the program and the database of my Samsung SSD 840 PRO 240 GB and have my virtual memory there too.