Graphical upgrades

[Mito Man]

Firstly use an overlay like MSI afterburner and play some games to see where the bottleneck is. Then you can see what you need to upgrade, the 8gb of ram will definitely be one but also check temperatures.

Processor - this can be upgraded to anything better that is compatible with your existing socket, like an i7 or i9 of the same age - probably not worth it though but you might find something cheap on eBay.

Ram - look on crucial, you may be able to get something faster. You have to tell the Bios though.

Graphics card - can be upgraded to anything within reason but check your physical space, cooling etc. Also you need to check how many watts your power supply is and the physical connector it has to the graphics card.

The limitation with these off the shelf builds is usually the power supply and space for cooling as sometimes they have proprietary stuff. It’s not as easy as they’re not very modular.