I live in a small town where there had been a total of 2 tournaments during last 5 years and 0 chess clubs, hence I have almost nil experience playing OTB chess. But sometimes I set up a board and play with my family. I have noticed that I miss a lot of tactics and obvious mates which I couldn't have missed while playing on Lichess. Also, I can't calculate properly OTB. I am shifting to the national capital this year where hopefully I would get to participate in OTB tournaments.
Is it a normal problem for those who play predominately online chess? How do I go about improving my OTB play?