Good x264 encode command line for AMD Phenom II X6 1045T 2.70 GHZ

[wcwman18]

I am trying to encode x264 and I have very minimal speeds. Below I will include my batch file and my avs code and I hope someone can help me tweak things for better encoding speed.

Batch file

basic x264 : x264.exe --threads 12 --crf 19 --vbv-bufsize 1450 --vbv-maxrate 1500 --direct auto --level 3.1 --ref 5 --subme 9 --weightp 2 \
 --b-adapt 2 --b-pyramid strict --me umh --keyint 300 --min-keyint 30 --aud --output %1.video.mkv %1

720p x264 : x264.exe --threads 12 --crf 14 --vbv-bufsize 4650 --vbv-maxrate 4700 --direct auto --level 3.1 --ref 5 --subme 9 --weightp 2 \
--b-adapt 2 --b-pyramid strict --me umh --keyint 300 --min-keyint 30 --aud --output %1.video.mkv %1

Here are my AVS Scripts

Basic x264

LoadPlugin("C:\Users\Owner\Desktop\pack\DG\DGAVCDecode.dll")
Load_STDCall_Plugin("C:\Program Files (x86)\AviSynth 2.5\plugins\yadif.dll")
DirectShowSource("prelims.ts")
ConvertToYV12()
Yadif(0,1)
Lanczos4Resize(704,400,6,6,-6,-6)

720p

LoadPlugin("C:\Users\Owner\Desktop\pack\DG\DGAVCDecode.dll")
Load_STDCall_Plugin("C:\Program Files (x86)\AviSynth 2.5\plugins\yadif.dll")
DirectShowSource("prelims.ts")
ConvertToYV12()
Yadif(0,1)
Lanczos4Resize(1280,720,6,6,-6,-6)