re: 'XP isn't compatible with the OBS software.'
It says 4 RAM but I'm pretty sure my Dell Vostro 1510 is under, and it says 'Windows XP SP3' for XSplit broadcaster. I've gotten to like XB because all the features like text crawls, scene changing, or you can you can add on telestrator (chalkboard) if you want to get fancy.
My laptop can't run OBS, Evolve etc. but XB has that feature I use instead.
https://www.xsplit.com/products/broadcaster?lang=en
p.s.
TCPRelay - improve your stream bandwidth
https://support.xsplit.com/forum/viewtopic.php?t=7159
Windows XP SP3