Comment 37 for bug 1783298

The slowness might have caused by some apparmor probs:
pr 11 15:16:58 zander kernel: [13422.621558] audit: type=1400 audit(1554988618.771:27): apparmor="DENIED" operation="open" profile="/usr/sbin/cupsd" name="/etc/gss/mech.d/" pid=13888 comm="ipp" requested_mask="r" denied_mask="r" fsuid=1000 ouid=0
Apr 11 15:20:43 zander kernel: [13647.282091] audit: type=1400 audit(1554988843.431:28): apparmor="DENIED" operation="open" profile="/usr/sbin/cupsd" name="/etc/gss/mech.d/" pid=20908 comm="ipp" requested_mask="r" denied_mask="r" fsuid=1000 ouid=0
Apr 11 15:25:43 zander kernel: [13947.374877] audit: type=1400 audit(1554989143.520:29): apparmor="DENIED" operation="open" profile="/usr/sbin/cupsd" name="/etc/gss/mech.d/" pid=27940 comm="ipp" requested_mask="r" denied_mask="r" fsuid=1000 ouid=0
Apr 11 15:28:24 zander kernel: [14108.309867] audit: type=1400 audit(1554989304.459:30): apparmor="DENIED" operation="open" profile="/usr/sbin/cupsd" name="/etc/gss/mech.d/" pid=424 comm="ipp" requested_mask="r" denied_mask="r" fsuid=1000 ouid=0
Apr 11 15:28:46 zander kernel: [14130.333125] audit: type=1400 audit(1554989326.483:31): apparmor="DENIED" operation="open" profile="/usr/sbin/cupsd" name="/etc/gss/mech.d/" pid=1116 comm="ipp" requested_mask="r" denied_mask="r" fsuid=1000 ouid=0
Apr 11 15:43:00 zander kernel: [14984.432581] audit: type=1400 audit(1554990180.581:32): apparmor="DENIED" operation="open" profile="/usr/sbin/cupsd" name="/etc/gss/mech.d/" pid=26456 comm="ipp" requested_mask="r" denied_mask="r" fsuid=1000 ouid=0
Apr 11 15:43:03 zander kernel: [14987.725323] audit: type=1400 audit(1554990183.873:33): apparmor="DENIED" operation="open" profile="/usr/sbin/cupsd" name="/etc/gss/mech.d/" pid=26546 comm="ipp" requested_mask="r" denied_mask="r" fsuid=1000 ouid=0
Apr 11 15:43:05 zander kernel: [14989.287668] audit: type=1400 audit(1554990185.433:34): apparmor="DENIED" operation="open" profile="/usr/sbin/cupsd" name="/etc/gss/mech.d/" pid=26584 comm="ipp" requested_mask="r" denied_mask="r" fsuid=1000 ouid=0
Apr 11 15:43:06 zander kernel: [14990.386287] audit: type=1400 audit(1554990186.533:35): apparmor="DENIED" operation="open" profile="/usr/sbin/cupsd" name="/etc/gss/mech.d/" pid=26610 comm="ipp" requested_mask="r" denied_mask="r" fsuid=1000 ouid=0
Apr 11 15:54:37 zander dbus-daemon[859]: [system] Activating service name='org.opensuse.CupsPkHelper.Mechanism' requested by ':1.167' (uid=1000 pid=14054 comm="/usr/bin/python3 /usr/share/system-config-printer/" label="unconfined") (using servicehelper)
Apr 11 15:54:37 zander dbus-daemon[859]: [system] Successfully activated service 'org.opensuse.CupsPkHelper.Mechanism'
Apr 11 15:55:43 zander kernel: [15747.355081] audit: type=1400 audit(1554990943.501:36): apparmor="DENIED" operation="open" profile="/usr/sbin/cupsd" name="/etc/gss/mech.d/" pid=15434 comm="ipp" requested_mask="r" denied_mask="r" fsuid=1000 ouid=0
Apr 11 15:58:20 zander kernel: [15904.185434] audit: type=1400 audit(1554991100.336:37): apparmor="STATUS" operation="profile_remove" profile="unconfined" name="/usr/lib/cups/backend/cups-pdf" pid=21257 comm="apparmor_parser"
Apr 11 15:58:20 zander kernel: [15904.185716] audit: type=1400 audit(1554991100.336:38): apparmor="STATUS" operation="profile_remove" profile="unconfined" name="/usr/sbin/cupsd" pid=21257 comm="apparmor_parser"

Did aa-disable cupsd and it seems faster.