Welcome to the forum!
You might need a much larger pot eventually. I have also seen different things about planting small plants in very large pots, but I think of it this way - the roots wouldn't be restricted if planted in the ground, would they? Some things are supposed to dry out between waterings, so a very large pot would stay wet for too long for those plants, but I don't think citrus is that type.
I think I remember those getting to 4-6 ft ( about 2 M), though I have never grown one. I have a 13 or 14 year old kaffir lime tree in a 14 gal pot, and it grows over 6 feet tall every year when I put it outside in spring (too cold here to leave out!), and would probably grow much larger. I cut it way down every year in fall, to bring it in, but it takes off again, and I have to cut it back again inside. However, it gets rootbound every two years, and I have to do a major root trimming on it, and re-pot it. So, you can see why I say you will need a much larger pot, as you will be leaving it out, I'm sure, and want it to keep growing. When the plants get somewhat rootbound, it can trigger the fruiting, which would be a good thing, for you (I only want the leaves!).
I think this citrus of mine likes more water (monsoon region), so somebody more familiar with your type can chime in. I plant mine in Pro Mix, with some coco fiber added, to keep it wet longer, and some worm castings.