Procaster 100% CPU usage when trying to livestream VLC or normal video stream online

[savethatshow]

CPU: Intel Pentium (R) Dual CPU T2370 @ 1.73 ghz
Memory (RAM) - 1.00 GB
OS: Windows Vista, 32 bit
Video Card (I think?) Mobile Intel(R) 965 Express Chipset Family , Adapter String : Mobile Intel(R) GMA X3100

Speed test to NYC :

I'm trying to use procaster to livestream a 720p homemade video with VLC, but everytime I try (even on normal setting, AND I have my microphone disabled) it jumps up to 100% CPU usage. I tried to use procaster to livestream a streaming video online, just to test and see if VLC alone was the issue, and that too made it jump up to 100%. Can you help me out here? is my system just not cut out for procaster use? it keeps telling me to close other apps.. whereas I have nothing running that I don't need. Is there another alternative to procaster?

Attaching a .jpg of my issue.