[CSGO] High sv var recently

[OnTheAn]

BASIC INFO
Server OS: Windows 8.1 64 bit
Processor: Intel® Pentium® Processor G3258
(3M Cache, 3.20 GHz)
Ram: 4GB
Game(s): Counter-Strike: Global Offensive
Start Up Command: srcds -game csgo -console -usercon +game_type 0 +game_mode 0 +map de_dust2 +mapgroup mg_active
Admin Mods: Sourcemod and MetaMod

INSTALLING INFO
login anonymous
force_install_dir "C:\csgo-ds-dm”
app_update 740

NETWORK AND BANDWIDTH INFO
Bandwidth:
Router: Technicolor TC7200.U
Local IP of Server: 192.168.0.51
External IP: (I'm not sure if i should give this info out to the public?)
Port Forwarding Screen Shot:

When i join my own server I'm getting a high sv and var, im rubberbanding and lagging a lot. I've had this server for like a month now, but this issue just happened. There have been some changes i made to my pc before it happened, but im not sure if that is the problem or how to reverse it. What happened is that i was getting a VAC authentication error in CSGO, so i followed a few solutions mentioned on the internet,
1) Cleanup of Steam files:
- Delete cache folder in *\Steam\SteamApps\common\Counter-Strike Global Offensive\csgo.
- Delete appcache folder in *\Steam.
- Delete ClientRegistry.blob in *\Steam.
- Verify integrity of game cache for Counter-Strike: Global Offensive.

2) Steam Repair:
Close Steam. Run CMD with admin privileges.

Line: "*\Steam\bin\SteamService.exe" /repair

3) Enable DEP:
Run CMD with admin privileges. Reboot.

Line: bcdedit.exe /set {current} nx AlwaysOn

Line: bcdedit.exe /deletevalue nx

4) Enable Kernel Integrity & disable Kernel Debugging:
Run CMD with admin privileges. Reboot.

Line: bcdedit /deletevalue nointegritychecks

Line: bcdedit /deletevalue loadoptions

Line: bcdedit /debug off

5) UAC:
Completely disable User Account Control (Start -> uac -> Never notify).

I would really appreciate any help.