slow channel zapping using moipro amd (tvheadend)

[gggabcsi]

Hi Guys,
Could you please help or recommend me something, regarding this situation:
Channle zapping very slow, approx. more than >5 second. Doesnot matter from which to which kind of channel switching, free to air or scrambled, in the same transponder or different, the situation is same.
Using tvheadend 4.0.9 with 4 pcs. of this kind of card on machine MOI Pro Amd, with lates tbs driver.
Thank you in advance for your support!

[SergioDanielG]

Hi gggabcsi,
What type of stream profile are you using?
Which is the lasted drivers number used?
And which client app are you using?

Kind regards.