based on that coverage (unfortunately we don't see the ref finish at the screen)
42 secs: Time taken for VAR to inform ref
16 secs: Time take for ref to arrive at screen
41 secs: Time taken for ref to get back in position and award
penalty
83 secs: Time taken to score penalty.
The last stage is irrelevant given that would have happened if the pen was awarded first time.
Assume ref takes 16 secs each way to screen and back. That's 32 seconds. Meaning it took 25 odd seconds to make a decisions. That seems reasonable.
So the longest time is actually the first stage where the VAR is re-checking the event. This seems to be the real problem because this could delay the restart of a game if the VAR has checked a replay quickly enough.