Ok, i will try to explain my problem better (sorry for my bad english)
the problem still exist.
The qnap use aMarvell 2.0 GHz CPU. Model Typ: TS-219P II
CPU load for one stream (HD 1080) with CWC
PID USER STATUS RSS PPID %CPU %MEM COMMAND
30941 admin S 70M 1 34.1 14.0 ld-linux.so.3
11293 admin R 960 11265 0.5 0.1 top
CPU load for two streams (HD 1080) with CWC
PID USER STATUS RSS PPID %CPU %MEM COMMAND
30941 admin S 74M 1 94.7 14.7 ld-linux.so.3
11293 admin R 1032 11265 0.7 0.2 top
CPU load for two streams (HD 1080)
without CWC
PID USER STATUS RSS PPID %CPU %MEM COMMAND
30941 admin S 74M 1 1.9 14.7 ld-linux.so.3
5833 admin S 14M 1 0.9 2.9 mediasrv
here my config off both dvb-s2 usb sticks:
http://imageshack.us/a/img94/6480/unbenanntvbl.jpg
i think the problem is on CWC!