Guys i have a question. I checked my bady stats through a fitness centre machine. Naturally i have a very high metabolism, and the machine recorded Basal metabolic rate at 1650 cal /day (amount of energy expanded at rest). Currently my cal intake/day is at 2700.. Sometimes 3000 or may be lower than 2700 depends.. Doing weights 5 times/week.. Do you think it is enough for optimum gain?

been gaining almost 4kg since 1.5 months ago starting working out. I believe our body react the most with most gains within the first 2 months of fresh work out. Thereafter it will slow down right? Or at the current diet pace, i will gain the same weight linearly in coming months?