**** yea its annoying. This thing is laggy as ****!! Surfing the net with this thing is frustrating at times. I particularly dislike it when I type and the on-screen characters are delayed by several seconds.
Actually, the results may vary. Since the problem involves firmware, only those with Stock ROMs can flash them. I couldn't flash the latest Nokia firmware since my ROM (now abandoned) wouldn't let Bluetooth Share and BT File Transfer work properly. Any attempts to flash the firmware to my device now running RainbowMod 2.1 will result in an installation error, stating that the file already exists. (It lists itself as 8779 firmware in Settings>about, although lucifer3006 said that it contained the neccessary drivers from build 8853 and such to use Bluetooth Share.)