Solved Computer is very slow at rendering games no matter if I put low graphics or high graphics and making werid noises.

Hello. I've been having this issue for a month already and it really doesn't bother me that much but I decided to solve it anyways. I searched for any similar problems like mine but every fix for them was reinstalling graphic drivers which doesn't work for me. It all started when I played War Thunder and the game was freezing every 1-2 minutes. I had a high fps and it wasn't laggy it was just freezing every 1-2 minutes and after 10-15 minutes game crashes with no error. I didn't pay attention to that as I didn't play that game a lot. After this I've seen issues in modern games like Forza Horizon 5. Game was running as always at 80 fps and the world in which I was driving was not loading. It never happened before so I decided to lower my graphic settings to minimum. Fps got up but the world was rendering very slowly. The worst problem was in Ready or Not game. It was freezing every 5 seconds and my PC made weird sounds (buzzing) like on start up. Also my sound was very laggy: when I shoot game freezes and I don't hear sound and more. It's like if I deleted some sound files and can't hear half of the sounds. In some games it was just freezing and when it froze sound repeated itself for about 3 seconds and it unfroze.

In total I've seen theese issues in:
- War Thunder (It is playable but it crashes after 2-3 games and freezes every 1-2 minute for about 3-5 seconds)
- Forza Horizon 5 (Unlike the other games it is not freezing it's just not rendering the world when I drive fast)
- GTA V (Only when I travel fast, if I don't then there is 0 lag)
- PUBG
- Enlisted
- Sons of the Forest (Doesn't even let me join the singleplayer, crashes on loading screen)

I still don't have any issues in games like:
- CS:GO
- Valorant
- Rocket League
- Minecraft
- Rising Storm 2: Vietnam
- NBA 2K23
- NBA 2K21

My setup:
Processor: Intel Core i5-9500
Graphics Card: Gigabyte Nvidia GTX 1660 (with 3 fans)
SSD: Samsung 970 Evo Plus NVMe PCIe M.2 250GB
HDD: Seagate Barracuda 2TB
Memory: Micron AFLD416FS1P 1x16GB 2667MHz (I tried putting it in different slot nothing changed it's now in slot 4/4)
Motherboard: MSI H370 GAMING PLUS (MS-7B22)
Monitor: ViewSonic VX3216-SCMH-W 75Hz
PSU: 650W (Forgot the brand will update if I check next time)

Software:
OS: Windows 10
BIOS Date: 20180224
Nvidia Graphic driver 536.23

I tried:
-Updating my graphics driver
-Reinstalling my grpahics driver with DDU (Clean install)
-Reinstalling my audio drivers
-Playing without my headphones
-Physically cleaning PC
-Reinstalling games
-Changing thermal paste
-Updating windows
-Lowering my graphics to minimal
-Using benchmark to solve issues but it nailed the benchmark literally 0 freeze on it.

Here is Speccy file in case you need it:

I have plugged in:
-Internet cable
-Keyboard AOC
-Headphones JBL
-Mouse White Shark

I have my monitor plugged in the graphics card cable in power supply. Just give me a moment I will tell you about my PSU.

Hey I just checked and I was wrong I have 600W not 650W.

Thank you a lot for your help. Your responses were extremely fast; I didn't even expect someone to answer this fast. I will try updating my BIOS, and I've set my power plan to Balanced. I'm probably going to buy some RAM, and yes, my PSU was very cheap because when I was building my PC, I wasn't thinking about the quality of the PSU; I was thinking only about wattage. I will send you some links where I will most likely purchase a new PSU.

I really appreciate your help! I can try to search on my own, since those were the two largest computer stores in the area, I might have to explore other options for PSUs that you suggested. Once again, thank you very much!

Oh wait...I just tried to play after putting high performance to balanced and it's not freezing anymore! Wow

It is still rendering slowly, but it doesn't freeze, and the sound is normal. Also, the PC is not making those weird sounds.