I did try some of the TF3D hacks on this page and I saw a HUGE increase in performance. Thi one worked the bst on th sprint toch pro:
Boost TFL3D Performance --> HKLM\System\Storagemanager\Fatfs and change key Cachesize from 16384 to 32768
Much quicker than number 1 on it’s own, now stonkingly fast.