solve FFMPEG convert RTMP to Web Socket Lag issue

Currenct we use ffmpeg to convert streaming source rtmp://xxxx(will be provide to potential freelancer to try it) to web socket and show it on website but found it streaming lag every 2-3 seconds. it may cause by TRANSCODING. We need ffmpeg expert to help us to solve this. You can push the streaming by FFMPEG from rtmp above to your own server websocket and show it on html with Canvas to me, if ok I will pay you for the solution. Thanks