Tales of Symphonia not running fullspeed

[Shonumi]

There's your problem, as I suspected. Old builds and revisions used less CPU resources than 4.0 and the latest development builds. To get the same speed in 4.0 as you had in 2.0, you'll need a better CPU, and with laptops, that most often means getting a new machine. The short story is your CPU is too weak for this game in recent revisions.