KDE slowness on fresh installation of FreeBSD 13.1 RELEASE.

Hi there,
I used FreeBSD on VM for learning and implement it on Servers before, now I have decided to use it on my workstation as my main OS.
I have a very good machine with i9 9000K CPU, 32GB memory, 1TB NVM2 storage and Nvidia RTX 2080.
I did a fresh installation of FreeBSD 13.1 RELEASE and used desktop-installer package to install KDE 5 Plasma.
Installation went smoothly and my GPU driver installed correctly but the performance on KDE is not smooth.
switching between between applications is lagging open KDE menu takes about 2 to 3 seconds to open.
press alt+space to run krunner takes the same time as KDE menu.
But once application opened, the application itself is running fine "open a photo on GIMP, browsing Internet etc.

I thought this might be related to Nvidia driver so I installed latest GNOME from packages and use it. It's butter smooth.

It's been a week and went through handbook "desktop environment chapter" to see if desktop-installer missed any configuration but I didn't find anything.

my rc.conf is:

Code:
clear_tmp_enable="YES"
syslogd_flags="-ss"
sendmail_enable="NONE"
hostname="freebsd"
ifconfig_em0="DHCP"
sshd_enable="YES"
#ntpd_enable="YES"
powerd_enable="YES"
# Set dumpdev to "AUTO" to enable crash dumps, "NO" to disable
dumpdev="AUTO"
zfs_enable="YES"
# Added by auto-admin from desktop-installer
moused_port=/dev/ums0
moused_enable="YES"
ntpdate_enable="YES"
ntpdate_flags="-u pool.ntp.org"
nfs_client_enable="YES"
rpc_statd_enable="YES"
rpc_lockd_enable="YES"
autofs_enable="YES"
devd_enable="YES"
devfs_system_ruleset="system"
dbus_enable="YES"
kld_list="nvidia-modeset fusefs"
linux_enable="YES"
sddm_enable="YES"
# End auto-admin addition

hald_enable="YES"
plexmediaserver_enable="YES"
auditd_enable="YES"

I added the following to sysctl.conf
Code:
net.local.stream.recvspace=65536
net.local.stream.sendspace=65536

Is there anything else I might missed to speed up the performance?

Now I'm using GNOME but I really want to use KDE instead.


Thanks in advanced.
 
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