With my other retired or older computers, or computers without dedicated graphics, I let the 'lag' go. It made sense.
(HP TX2Z tablet)
(HP 2740p Elitebook tablet)
Custom dual core 3.0ghz AMD AM2 w 9800GT
But now?
This is my rig. There are many like it, but this one is mine.
AMD 1100T x6 Phenom II running 3.99 GHZ
Win 7 Ultimate 64
16GB DDR3
OS RAID AMD 2+0 Stripe Raid 0 - Mushkin chronos ssd
Storage AMD 2+1 Raid 5 - standard spin drives
3x GeForce GTX 470 (overclocked)
I would think that this system could easily handle the game played at 4x speed, nevermind normal speed.