dm368 encoder decoder performance

Hi,

i am using thelatest dvsdk4 for dm368 and my bootargs are 

setenv bootargs console=ttyS0,115200n8 mem=54M vpfe_capture.interface=1 dm365_imp.oper_mode=0 root=/dev/nfs rw noinitrd ip=dhcp nfsroot=192.168.115.242:/home/siva/linuxfilesys/targetfs,nolock video=davincifb:vid0=off:vid1=off:osd1=off:osd0=1280x720x16,3700K davinci_display.cont2_bufsize=6291456 vpfe_capture.bufsize=6291456 vpfe_capture.cont_bufoffset=0 vpfe_capture.cont_bufsize=8298496

so with the above setup and with the following pipeline to encode and decode at a time on dm368evm 

gst-launch-0.10 -e v4l2src always-copy=false ! video/x-raw-yuv, format=\(fourcc\)NV12, width=1280, height=720 ! TIVidenc1 codecName=h264enc engineName=codecServer ! TIViddec2 engineName=codecServer codecName=h264dec  ! TIDmaiVideoSink videoOutput=D1_NTSC videoStd=720P_60 sync=false displayDevice=/dev/video2 displayStd=V4L2 numBufs=4 useUserptrBufs=true accelFrameCopy=true

i am getting display of around 4 secs delay... on my TV

So, could any one help me to get the better performance without delay 

Thanks & Regards

Siva Prasad T