Specs?
Connection method, wired or wifi?

See if disconnecting game controllers help.

Temperatures ok?

Turn off any overlays.

Disable start up programs.

Turn on vsync?

Lots of stuff can cause lag spikes.

引用自 Supafly：

Specs?
Connection method, wired or wifi?

Wifi

引用自 Set-115689：

See if disconnecting game controllers help.

Temperatures ok?

Turn off any overlays.

Disable start up programs.

Turn on vsync?

Lots of stuff can cause lag spikes.

I checked all of that, all is good, one problem i have tho is that i have only 8gb RAM and its using it all, but that wasnt a problem until now

How do you play on 8GB RAM ! The modern games need 16GB at least .

lag (network delays)
or low fps

wifi will add a small amount of lag

but the solutions are very different from low fps

i have 2 games which love to eat VRAM . Even 8GB of my RTX 4060 was not enough but i managed to trick them . NVidia Smooth motion + DLSS did the trick . Otherwise these 2 games were stuttering . So , when the PC runs out of RAM, VRAM and etc. stutters . yet , overheating , raw performance and so on

if you have 8g of system ram, there is no way anything can use 8g of vram

specs?

post a cpuz validation link
http://www.cpuid.com/softwares/cpu-z.html
cpuz -> validate button -> submit button
it will open a browser, copy the url (address) and paste it here

引用自 smallcat：

How do you play on 8GB RAM ! The modern games need 16GB at least .

Its not that big of a problem, idk, i played GTA 5 Forza Horizon 5, even tho it was crashing after like 30 min of playing

引用自 _I_：

if you have 8g of system ram, there is no way anything can use 8g of vram

specs?

post a cpuz validation link
http://www.cpuid.com/softwares/cpu-z.html
cpuz -> validate button -> submit button
it will open a browser, copy the url (address) and paste it here

Intei i5 9400F , GTX 1650,

Between 8GB of RAM and a GTX 1650 that has 4GB VRAM I can see why games run poor.

Buy a 16GB kit (2x8GB) or even 32 (2x16GB) and look for a GPU with at least 8GB VRAM, check the PSU is up for a better GPU.

引用自 Mișu 8GB：

引用自 _I_：

if you have 8g of system ram, there is no way anything can use 8g of vram

specs?

post a cpuz validation link
http://www.cpuid.com/softwares/cpu-z.html
cpuz -> validate button -> submit button
it will open a browser, copy the url (address) and paste it here

Intei i5 9400F , GTX 1650,

Install HWinfo and check the temperatures of the CPU and GPU. If needed, address that with fans and/or new thermal paste.
Are you using a controller? When playing The Last of Us, the game runs perfect with keyboard+mouse. Also starts perfect with a controller but after some time the game lags like crazy, the graphics get "foggy" and I also get some graphics shadowing. Disconnecting the controller fixes it, even without restarting the game. In my case it's probably due to some driver issue/incompatibility. The Last of Us is known for that sort of issues with controllers.
Other than that, driver issues or just old hardware.

引用自 wing0zero：

Between 8GB of RAM and a GTX 1650 that has 4GB VRAM I can see why games run poor.

Buy a 16GB kit (2x8GB) or even 32 (2x16GB) and look for a GPU with at least 8GB VRAM, check the PSU is up for a better GPU.

^this

You have a lower-end system from 6 years ago. Newer games are going to run poorly and at low frame rates. You'll need to make sure you tune game settings to lower resolution and lower settings.

I'd still suggest as others that you actually install and run the CPUz validator and post the link here so people have a better picture of all of the hardware and it's configuration. And also the suggestion to use hardware info (HWinfo) to see if you have anything else that would obviously impact system performance; such as thermal throttling.

When game is using all of your ram it will obviously affect fps and cause lags / stuttering.
You can manually increase size for your paging file to 16 Gb to at least make it a little bit better, but it's not a solution & might not do much at all.
The solution is to buy more ram

One thing people haven't mentioned yet. Updates... windows updates, games update and most of the time those updates will take a tiny amount of resources. It all stacks up.