Hello fellow PCMR readers, I built my rig in March of 2020 and have done a few upgrades since then and I have a few questions about temps/airflow and performance in general. Forgive any formatting issues because I'm on mobile and typing this quick while at work.

My rigs current specs are as follows

CPU Ryzen 5 3600 w/ included wraith cooler

Mobo Asus X570 Tuf Gaming

Ram 2x8gb Kingston and 2x8 Corsair Vengeance ( i know it's not advised to run 2 different brands but they both have the same timings and run 3200mhz smoothly when XMP settings are enabled.)

GPU Evga FTW 3 3080 LHR

Storage WD 1tb NVME SSD, 500gb NVME SSD as my boot drive, 5tb WD Black external HDD for less frequently played games and another 500gb 2.5" ssd for 3D modeling files.

Display 2 Samsung Odyssey G5 32" 1440p Monitors

Case Fractional Designs Meshify C

Fans 3 corsair LL120 fans 2 intake on front of pc 1 exhaust on rear

PSU NZXT C850

As far as my questions go I'm wondering about system performance. I'm able to play pretty much what I want at High/ultra settings with anywhere from 70-200 FPS depending on title but I'm wondering if my CPU is holding me back performance wise.

Also wondering about temps, under load in Borderlands 3 and Cities Skylines my GPU peak temp hits about 85°c I know that's on the higher end of acceptable temps but I'm wondering with summer fast approaching if I should add more fans to the top of my case as an intake for more airflow over the components.

And lastly storage, I have way to many drives and am struggling to figure out my next move. My wife has also gotten into 3D modeling and using the cricut vinyl cutter so between the 2 we're filling up storage fast with .stls, .pngs, .svgs. should I just keep buying more 2.5"ssds and just put them inside the machine or is it worth biting the bullet and trying to build a NAS so my wife and I can each access the files from our respective rigs and have a central file dumping location for all craft related files.

Thanks for reading the wall of text, any and all help is appreciated.

Edit: Added a few missing components