Everything is very slow on my MacBook Air 2011 with Mavericks

Recenty I found a process kernel_task in my process list. And that process consumed about 300% CPU. I used the following instruction to fix it
1. Go to About this mac under the apple in the upper left and click on More info
2. Click on system report
3. make a note of what it says after Model Identifier
4. go to your master drive – System -Library – Extensions – IOPlatformPluginFamily.kext -Contents – Plugins – ACPI_SMC_PlatformPlugin.kext – Contents – Resources – find the name from step 3 and move it to a folder that you can find again if needed.
After fix there was a problem with sound. It was making pauses every 3-5 secconds. So I tried to clear SMC. That has not helped. And I reinstall the system with hard drive formatting. Now I have a clean IOS Mavericks but everything is VERY slow. To turn off the computer I need to press the power button for 10 secconds. After loading everything is very slow. It tells me that it will take 20 hours to full up the battery. Also I have load average at minimum 12 with no activity. But nothing consuming visible in the process list.
Please help

Here the information:
Hardware Information:
          MacBook Air (13-inch, Mid 2011)
          MacBook Air - model: MacBookAir4,2
          1 1.7 GHz Intel Core i5 CPU: 2 cores
          4 GB RAM
Video Information:
          Intel HD Graphics 3000 - VRAM: 384 MB
Audio Plug-ins:
          BluetoothAudioPlugIn: Version: 1.0 - SDK 10.9
          AirPlay: Version: 1.9 - SDK 10.9
          AppleAVBAudio: Version: 2.0.0 - SDK 10.9
          iSightAudio: Version: 7.7.3 - SDK 10.9
System Software:
          OS X 10.9 (13A603) - Uptime: 0 days 0:12:8
Disk Information:
          APPLE SSD SM128C disk0 : (121,33 GB)
                    EFI (disk0s1) <not mounted>: 209,7 MB
                    Macintosh HD (disk0s2) /: 120,47 GB (109,58 GB free)
                    Recovery HD (disk0s3) <not mounted>: 650 MB
USB Information:
          Apple Internal Memory Card Reader
          Apple Inc. FaceTime Camera (Built-in)
          Apple Inc. Apple Internal Keyboard / Trackpad
          Apple Inc. BRCM20702 Hub
                    Apple Inc. Bluetooth USB Host Controller
FireWire Information:
Thunderbolt Information:
          Apple Inc. thunderbolt_bus
Kernel Extensions:
Problem System Launch Daemons:
          [failed] com.apple.ucupdate.plist
Problem System Launch Agents:
Launch Daemons:
Launch Agents:
User Launch Agents:
User Login Items:
          iTunesHelper
3rd Party Preference Panes:
          None
Internet Plug-ins::
          Default Browser: Version: 537 - SDK 10.9
          QuickTime Plugin: Version: 7.7.3
Bad Fonts:
          None
Old applications:
          None
Time Machine:
          Time Machine not configured!
Top Processes by CPU:
               2%          WindowServer
               2%          hidd
               2%          EtreCheck
               1%          ps
               0%          ocspd
Top Processes by Memory:
          143 MB          Safari
          139 MB          WindowServer
          127 MB          CalendarAgent
          123 MB          com.apple.IconServicesAgent
          98 MB          Calendar
Virtual Memory Statistics:
          342 MB          Free RAM
          1.76 GB          Active RAM
          1.44 GB          Inactive RAM
          474 MB          Wired RAM
          232 MB          Page-ins
          0 B          Page-outs
I want to add that in safe mode everything works much more faster... Yes, and this report was prepared in safe mod.

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