Question / Help How can i make my streams better?

[Moonlight]

My specs are attached
when i stream its pretty choppy im streaming minecraft

i use x264 encoder 4k bitrate 2 keyframe interval ultrafast preset on 20 fps with bilinear filter
im curious what on my computer should i upgrade to make my streams smother and what settings should i use now

 

[Narcogen]

It's a six-year-old iMac. There's nothing in it you can upgrade.