Extremely slow rendering. i5, 6gb RAM, CS6 PRO

Question

Hi guys!
So I got really tired of insanely long render times. I usually use 1-2 video tracks, no keying, no special effects, commonly use Warp Stabilizer, Cineon Converter and PRO Camp, of course some colour correction (usually RGB curves, but sometimes a three way). Usually it ends up being about 3-4 tracks. On last project it took 2 hours to render a two minute video. Below i'll post info on that.
And today its taking about 12 hours to render a 40 minute video.( I am frustrated and sad of this(
My usual composition layout:
Titles
adjustment layer
video 2 (rare)
video 1
sound one
sound two
sound three (rarely)
My laptop^
i5 2n gen 2.5-3.2Ghz dual core (4 logical cores)javascript:;
6GB Ram 1333 MHz
GT 525M 1GB (i've enabled CUDA GPU acceleration. works like a charm on all 96 little silicon cylinders.)
540rpm 640 GB, practically empty (Partition D)
Use Canon for video recording, so it is UP TO fullHD .mov files. Usually FHD @ 70-100MB/s (canon's standart) Screenshots were taken at the moment of rendering (70% through)
My export settings are:
.h264
FullHD
29.97FPS/30FPS
VBR Pass 2
Target bit rate 8-10 mbs
max - 15-20
"Use Max rendering quality + use max bit depth"
Can someone point out my idiocity? Please let me know what shoud I do to avoid this.
PS, 8 core MacPro or an 8 core i7 extreeme, are neither an option here(... just sain'
English is not my native, so sorry for mistakes.
Thanks in advance!

Answer 1

Thanks mate!
I kinda knew all of what you said, but i guess now i am more sure of suckingness of my machine... funny thing is, load goes up to 90% maybe three times during a render and it stays loaded for a short periodof time... i loogged one of my renders back when i had Win7 x64 (ultimate) (same machine) and it showed that neither of devices were loaded more than 90%
it was something like this:
CPU <92%
GPU <95% (exception)
disk <30%
memory <50-65%
I know that with VBR 2 there are 2 passes, thus twice as long in render... but god damn, almost 2 hours for a 2 minute video??? its awful. and all of those procesess take up less than 7% for all of them. Finally, since i got only 6 GB of physical memory, my adobe is able to only use 4gb. so there is nothing bad.. I've never had any issues with such low RAM. If i had an i7, then yes, i'd need about 12-16 gb to get the most, even though, its the, SATA to Hard drive that bottlenecks the stuff. I wish I could get an SSD, but they are hellishly expensive. i got my drive thru sata3, but still, the drive is kinda sad and broken (old) so this is why i must be getting such low speeds... even when i copy info using USB3<-->USB3 device, the speed never goes over 20MBs for downloading and 5MB to uploading to a USB device.
PS... sucks to wotk an a low end machine.