I really wish the movies got the hidden battle going on right. The sword play is just the external representation of the battle, both opponents are constantly setting up traps and defenses using the force waiting for one side to slip up. Setting up mind control shields, constaly trying to push and pull the opponent, using the force to micro adjust the blade in motion, etc. Only two examples I can really think of are the terrible use of pantomime in ROTS and Luke punking on Kylo at the end of TLJ.