Nope. At least not with comically powerful fans that can create enough suction to move enough air through them. We're talking about 38 or 50.8 mm fans. Normal PC fans can't pull enough air through those holes to make a difference. I have a few, they're so loud you have to wear ear protection inside the room, if you've ever used one of those tiny I think 4 1/2" angle grinders that spin at 15K RPM, that's how they sound, constantly.
I can only say whoever designed that case has absolutely no idea on how fans work. That's what happens when you hire designers rather than engineers to do a job, it's like with interior designers and electrical work, they do everything with the looks in mind but it's an absolute nonsensical nightmare when it's time to route the wires.
That's the thing. All cases from NZXT are shitty, lol. Flow is just a gimmick, the overall design is still terrible.
The downsides of a prebuilt. It's often the case or the power supply that suck, or both, that's the rule.
The good thing is that you don't have to do all of that, at least not at the same time. Users who suggested a new CPU cooler haven't read that you're using a NZXT case or simply decided to ignore it, oh and you really don't need a huge $100 cooler for an F-series CPU because it makes no sense, an entry level cooler is enough IF the case is decent.
Here's a cheap case with good airflow
It's not from a "known" brand but hey, it'll do the job. I'm not a big fan of transparent side panels but I couldn't find one in my taste for less than $100.
Here's a cooler.
I've used this cooler before but not the "RGB" version, I used it to cool an FX-8370 and it never went over 80C so I'd say it's pretty good considering it's only 20 bucks. The non-RGB version is cheaper and comes with a simple black fan.
And for the front fans for the case... there's no need to use Noctua fans that cost $50/ea. that makes no sense, I know there's a lot of shilling in forums for brands like Noctua but their products aren't even that good, I get my fans from a local electronics components store for about $5 for 120x25mm 1600RPM fans, they come with 3-pin cables and can be controlled via voltage from any motherboard made in the last 25 years.
Cooled 3 graphics cards with them and considering the price they're superb stuff. You might not find something that cheap in your country but my point is that you don't have to spend $100 in two fans just because of a brand like some people suggest.
The links I provided are from US Amazon because I couldn't find amazon.dk but see if you can find those parts in local sites or an european site that offers shipping to Denmark.
) in front of your PC. Just don't get to close, some do have quite a strong magnetic field.