I have never had this problem with my t2.
I have added 1 gig of ram and a 60 gig hard drive. I wonder if this is why.
the computers use your flash memory, and then the ram that is installed and when that is all used up it starts using free space on the hard drive for memory. It works but causes everything to slows down to the speed of the hard drive rather then the speed of the memory chips.
Bebop