Welcome to the joy that is tweaking MSFS. Lol.
I would first make sure your expectations are in order. This sim can be very resource demanding, especially if installing add-ons, so don’t expect first person shooter type frame rates. Actually, being locked at a reliable 30fps is fine for most things in the sim, so you are already doing ok in that regard. The things that may impact your enjoyment now are stuttering issues.
Because your main thread (the CPU) frame time is close to the gpu frame time, I would dial back CPU intensive settings. That will be the easiest step in limiting stutters, and that will make a big improvement in playability. Turning down the traffic (planes, ground vehicles, boats, workers, and fauna) will be the most obvious settings to lower and found in the traffic settings tab. In the graphics settings tab, the terrain level of detail is another big CPU hog. This can be thought of like a render distance setting, where the higher settings mean you see buildings, trees, mountains, etc further away and in greater detail. Object level of detail has an effect as well on the CPU, and is like a render distance that determine when specific object details pop in/out.
Ideally you want to be gpu limited for optimal smoothness. Some background processes also create stutters (Razer Synapse is a huge cause of stutters), so killing unnecessary programs can help too. If 30 fps isn’t fast enough for you, then first dial your CPU usage in, then try changing the render scale to less than 100 and let it upscale. That is an easy way to increase your fps without sacrificing much image quality (as long as you don’t become main thread limited again in the process). At this point, it becomes a balancing act with settings.
Your hardware should be playable at least on medium settings without much additional tweaking, but keep in mind prebuilt systems like yours are often not very optimized at the OS level and may have additional bloatware that can hamper performance. The above suggestions should get you started at least, and then can work on fine tuning and optimizing later if needed.