I like him a lot and he still has huge potential.
He's still an easy target to be pressed and I hope he soon gets calmer in those moments.
Normally Ilkay is very press resistent but yesterday 1st 20 mins he was shaky as well.
That said, there's no better pressing team in that intensity, but Liv only have legs to do so for about 60 mins, then they need to be winning by then and sit back, go on the counter.
Rodri will improve under Pep, I don't have any doubts.
He won't get quicker for his anatomy, but his game reading, positional play and decision making (when to step out or not) will improve IMO.