I would strongly recommend you to switch to a 64-bit enviroment. QV holds all its data in memory. And with any 32bit-OS there is definitely a RAM-limit (clearly <4GB), depending on different parameters. For details please refer to other threads, you will find many with this topic.
As you told your data will grow rapidly. Let's say to 14*8 Mio rows. You will likely have not only loading issues, but also an issue with your endusers. It can be very uncomfortable when your and/or your endusers demand is growing and your infosystem can't keep up with it.