1080p60 is usually to the AVCHD specs that have the reputation of being complex. A 1 to 2 render time is actually pretty good. The usual bottle neck is the read and write speeds of the hard drive, not the CPU. To allow the CPU to work faster, it the computer has to get data to and from the drive faster. The tradional solution was to have the software on one drive, the source material on a second drive and output to a third. Now that we have solid state drives speeds improve it you can use one for all three.