Find services/tuning terrible slow...

Hi all...

I've a problem with tvheadend 4.2.7 (4.2.7-4.el7 rpm for centos) with digital devices card and 4 tuners (ddbridge module)..
The search for new services is terrible slow... I've astra and hotbird as input and after 3 days it founded on astra ~350 and on hotbird ~1200 services... If I want to use them with vlc for example, It works only sometimes, I think because of slow tuning...

my log is attached