How to completely disable tvheadend

Hi, I disabled tvheadend addons via GUI but with top (SSH) I continue to see tvheadend activities.
How can I completely stop tvheadend service without uninstalling it?
And for oscam?

Of course I disabled both beckend and PVR frontend add-ons from Kodi My Add-ons, but in SSH if I type "top" I see tvheadend activities.

Same with oscam.
I have a RAM saturation issue and I think that is caused by tvheadend and oscam service. I would like to completely stop them instead of uninstalling.
There are some.ssh command to do so?