NetworkManager Is running out my laptop ram and CPU

Ihave upgraded the network manager a month ago but it is make my laptop screaming. here my dmesg

[ 197.856471] cfg80211: Calling CRDA to update world regulatory domain
[ 197.933205] cfg80211: World regulatory domain updated:
[ 197.933214] cfg80211: DFS Master region: unset
[ 197.933218] cfg80211: (start_freq - end_freq @ bandwidth), (max_antenna_gain, max_eirp), (dfs_cac_time)
[ 197.933224] cfg80211: (2402000 KHz - 2472000 KHz @ 40000 KHz), (N/A, 2000 mBm), (N/A)
[ 197.933229] cfg80211: (2457000 KHz - 2482000 KHz @ 40000 KHz), (N/A, 2000 mBm), (N/A)
[ 197.933232] cfg80211: (2474000 KHz - 2494000 KHz @ 20000 KHz), (N/A, 2000 mBm), (N/A)
[ 197.933237] cfg80211: (5170000 KHz - 5250000 KHz @ 80000 KHz, 160000 KHz AUTO), (N/A, 2000 mBm), (N/A)
[ 197.933242] cfg80211: (5250000 KHz - 5330000 KHz @ 80000 KHz, 160000 KHz AUTO), (N/A, 2000 mBm), (0 s)
[ 197.933246] cfg80211: (5490000 KHz - 5730000 KHz @ 160000 KHz), (N/A, 2000 mBm), (0 s)
[ 197.933249] cfg80211: (5735000 KHz - 5835000 KHz @ 80000 KHz), (N/A, 2000 mBm), (N/A)
[ 197.933253] cfg80211: (57240000 KHz - 63720000 KHz @ 2160000 KHz), (N/A, 0 mBm), (N/A)
[ 197.933282] cfg80211: Calling CRDA for country: BO
[ 197.940648] cfg80211: Regulatory domain changed to country: BO
[ 197.940656] cfg80211: DFS Master region: unset
[ 197.940659] cfg80211: (start_freq - end_freq @ bandwidth), (max_antenna_gain, max_eirp), (dfs_cac_time)
[ 197.940665] cfg80211: (2402000 KHz - 2482000 KHz @ 40000 KHz), (N/A, 2000 mBm), (N/A)
[ 197.940670] cfg80211: (5250000 KHz - 5330000 KHz @ 80000 KHz), (N/A, 3000 mBm), (0 s)
[ 197.940674] cfg80211: (5735000 KHz - 5835000 KHz @ 80000 KHz), (N/A, 3000 mBm), (N/A)
[ 198.863087] wlp2s0: authenticate with ec:08:6b:18:c4:7d
[ 198.879198] wlp2s0: send auth to ec:08:6b:18:c4:7d (try 1/3)
[ 198.881329] wlp2s0: authenticated
[ 198.881602] ath9k 0000:02:00.0 wlan0: disabling HT as WMM/QoS is not supported by the AP
[ 198.881611] ath9k 0000:02:00.0 wlan0: disabling VHT as WMM/QoS is not supported by the AP
[ 198.882067] wlp2s0: associate with ec:08:6b:18:c4:7d (try 1/3)
[ 198.884677] wlp2s0: RX AssocResp from ec:08:6b:18:c4:7d (capab=0x401 status=0 aid=4)
[ 198.884792] wlp2s0: associated
[ 199.879630] wlp2s0: deauthenticating from ec:08:6b:18:c4:7d by local choice (Reason: 3=DEAUTH_LEAVING)

ProblemType: Bug
DistroRelease: Ubuntu 16.04
Package: network-manager-gnome 1.2.0-0ubuntu0.16.04.4
Uname: Linux 3.10.103-0310103-generic x86_64
ApportVersion: 2.20.1-0ubuntu2.1
Architecture: amd64
CurrentDesktop: MATE
Date: Fri Sep 23 23:30:40 2016
IfupdownConfig:
 # interfaces(5) file used by ifup(8) and ifdown(8)
 auto lo
 iface lo inet loopback
InstallationDate: Installed on 2016-07-19 (65 days ago)
InstallationMedia: Ubuntu-MATE 16.04 LTS "Xenial Xerus" - Release amd64 (20160420.1)
IpRoute:
 default via 192.168.12.1 dev wlp2s0 proto static metric 600
 169.254.0.0/16 dev wlp2s0 proto static scope link metric 1000
 192.168.12.0/24 dev wlp2s0 proto kernel scope link src 192.168.12.8
 192.168.12.0/24 dev wlp2s0 proto kernel scope link src 192.168.12.8 metric 600
NetworkManager.state:
 [main]
 NetworkingEnabled=true
 WirelessEnabled=true
 WWANEnabled=true
SourcePackage: network-manager-applet
UpgradeStatus: No upgrade log present (probably fresh install)
nmcli-dev:
 DEVICE TYPE STATE DBUS-PATH CONNECTION CON-UUID CON-PATH
 wlp2s0 wifi connected /org/freedesktop/NetworkManager/Devices/0 KR-Hotspot 6a0f0865-6e86-456d-a887-111b9694fafc /org/freedesktop/NetworkManager/ActiveConnection/4
 80:6A:B0:36:C6:D5 bt disconnected /org/freedesktop/NetworkManager/Devices/3 -- -- --
 enp1s0 ethernet unavailable /org/freedesktop/NetworkManager/Devices/1 -- -- --
 lo loopback unmanaged /org/freedesktop/NetworkManager/Devices/2 -- -- --
nmcli-nm: Error: command ['nmcli', '-f', 'all', 'nm'] failed with exit code 2: Error: Object 'nm' is unknown, try 'nmcli help'.