Can I use this for bathtub? Does it have enough water pressure,or would it take to long to fill

As this faucet comes with a waterfall spout, it can also be used for a tub. For sink use, the flow rate of this faucet is about 2.5 gallons per minute. If for tub use, the flow rate could reach max 9 GPM by using 3/4\" pipes for plumbing connection or connecting it to the main water supplies. But the actual flow rate still depends on the water pressure at your home.