avs2avi only 55 percent cpu usage,i want 100 percent

[antialiasing]

avs2avi a.avs out.avi -c xvid
a.avs contains:
LoadPlugin("C:\MEGUI\tools\ffms\ffms2.dll")
FFVideoSource("source.mp4", threads=6)
LoadPlugin("C:\AVISYNTH\plugins\zoom.dll")
trim(25,275)
crop(4,8,-4,-8)
BilinearResize(1920,1080)
AssumeScaledFPS(80,40).ChangeFPS(last)

file info:
avisynth 2.6
avs2avi filesize 46,592 hash:af9e481104fd1c74577648dd6761160b

[MeteorRain]

How many CPU cores do you have? When XviD was made, there was not many cores in a CPU, so don't expect it to have a high CPU usage if you have many cores.

[antialiasing]

i have 4 core .... if not optimized for multicore , can you suggest another exe file that can do task like this?

[Katie Boundary]

The EXE doesn't matter. You're being throttled by DivX and AVIsynth.