MOI+ running slow with more than two tuners enabled

[Sergicchio]

Hi,
I have MOI+ with TBS6285 quad DVB-T tuner card.
With only two tuners enabled in TVHEADEND, all systems works ok.
If I try to enable three or four tuners MOI+ going slow, TVHEADEND web interface hangs and SAMBA protocolo doesn't work.
The only way is hard reset MOI+ and enable at least two tuner to get MOI+ running smooth.
OverTheAir EPG data grabber is enabled.
Is there a way to know how can I kill unwanted processes to speed-up my system?
Thanks in advance.
Sergio

[Sergicchio]

Solved.
Switching on new tuners, MOI+ probably scans all trasponders for new services.
This operation brings cpu to 80% for an half of hour.
After that all works normally.
Now I have MOI+ with four tuners working.