Difference between live and recorded quality

Hi all,

sometimes we expirience a strange behaviour while recoding a session (individual mode). The live streaming quality is very good and smooth but the recorded quality has many drop-outs, compression artefacts etc.,

What can be the reason for that? Where should I start debugging?

Thanks!

Additional information on our configuration (OpenVidu CE with Kurento):

OPENVIDU_STREAMS_FORCED_VIDEO_CODEC = VP8
OPENVIDU_STREAMS_ALLOW_TRANSCODING = true
OPENVIDU_STREAMS_VIDEO_MAX_RECV_BANDWIDTH = 2000
OPENVIDU_STREAMS_VIDEO_MIN_RECV_BANDWIDTH = 150
OPENVIDU_STREAMS_VIDEO_MAX_SEND_BANDWIDTH = 2000
OPENVIDU_STREAMS_VIDEO_MIN_SEND_BANDWIDTH = 150