I haven't had any complaints about the pass rush. Yeah, there are plays where the QB has a bunch of time back there, but that's the NFL. Offensive linemen are good, and unless you're willing to make a Broncos-sized investment in your pass rush (draft and cap), you're not going to get pressure all the time.
This is a really small sample size, though. Through 5 games, PPG stats say as much about who you've played as anything. Leading the AFC in points allowed says as much about the Texans, Browns and Dolphins as it does about our defense. Let's revisit in two weeks and see if this stat holds.
What's been interesting to me is seeing this defense perform as kind of an inverse of where we were not that long ago. There was a stretch where the Pats gave up lots of yards between the 20s, but made up for it by tightening up in the red zone and forcing turnovers. Now they're looking like a D that doesn't force many turnovers but is great between the 20s, which prevents their weakness in the red zone from being magnified. This may be a product of who they've faced, though. With The Dolphins, Texans, and Browns, the clear gameplan against them is to keep the play in front of you and force them to string together a long drive against you. I expect we'll see the same strategy against the Bengals.