source:TF201 Update Coming to address I/O Performance issues
Transformer Owners Rejoice. The I/O issues that have plagued the TF201 and perhaps the TF300 and TF700t are about to be officially addressed by ASUS via a new firmware update. Developers have linked the issue to SQLite syncing with the Tegra 3 chip.
Although ASUS has confirmed the update and its focus on I/O performance issues they have not revealed if it is going to be rolled into a Jelly Bean update or a ICS update.
Overall this should help the perceived responsiveness of the Tegra 3 Transformer Line.
http://mark-tech.blogspot.dk/2012/08/tf201-update-coming-to-address-io.html