You took the words out of my mouth.
I totally agree with your statement that McVay needs to let Goff run the offense. Goff is in his 4th year, he knows the offense, he knows the checks and audibles. Goff is a very smart player. McVay needs to let Goff "run the show" on the field during the game.
I also agree that Goff does better with a quicker, faster pace up tempo rhythm. Get to the LOS, call the play and go. The Rams do much better in that style of offense and Goff has proven that he's good at it.
IMHO, McVay needs to "take the training wheels off the bike and let Goff actually ride it." McVay needs to let Goff run the offense, PERIOD!