Windows Operating System has its own screen recorder
The issue you will likely run into is that running real-time video encoding can be done on older hardware, with fine attention to technical details (you have to get into the weeds, and it typically takes a fair amount of technical sophistication). Or spend on over-powered hardware, so you don't have to watch for resource bottlenecks, and fine tune Operating System and recording software to optimize for your specific setup
You have a laptop now, right? unfortunate as that means you can't upgrade just the GPU (graphics card) for an encoding offload (move really computationally intensive work from CPU to GPU). So, in your case, that means making the best use of that AMD APU (combine CPU/GPU). Sorry, not my area of expertise, someone else will have to comment on specific encoding (Recording) settings to use
then
- optimize Operating System by turning off eye-candy settings, and processes/application not needed/not in use (frees up CPU and RAM)
- make sure all audio sources using same sampling rate
- avoid resizing between screen resolution, base canvas, and output resolution (doing so causes extra work)
- avoid CPU intensive filters effects, especially chroma-keying...
the above you are likely to have to do regardless of software chosen
- don't use OBS Studio's Studio Mode as that is 2X rendering workload
