Hi, thanks for the quick response!
I haven't tested the game on a device with these sorts of specifications unfortunately, I can only assume that the start up loading process is too intensive. In the next update (1.6) I will be adding some further asset optimisation which sould hopefully reduce the burder on start up.
I will also be testing the game on a device with as similar specifications to yours as possible to see if I can replicate the issue as it may also be due to Windows 8 or the older drivers of the 730.
Thanks again for reporting this, as I said I'll look into it for the next update.
Cheers.