make sure to post a log
your hardware is really low end so streaming is pretty much not going to happen with x264 and a decent quality while not having huge performance issues. with recording you could be able to run 720p30 with ultrafast preset etc...
i'd suggest using either qsv which should be quite decent on haswell cpus or nvenc (shadowplay) if your gpu supports it ... there are two different gt 630 one support it the other simply doesnt