Fan works like crazy and the battery drains quickly after the installation of Sierra on MacBook Pro

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  Hello

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  Hello!  Can anyone help me in this state of EtreCheck to understand what I need to do to improve performance with my MacBook Pro?  The computer is slow to respond after the computer starts.  Apps are also slow to load.  Once I have apps open, the speed is satisfactory.  It just seems to have the hiccups a lot just to get there.

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  EtreCheck version: 2.9.13 (267)

  Report generated 2016-08-05 07:36:41

  Download EtreCheck from https://etrecheck.com

  Time 03:56

  Performance: good

  Click the [Support] links to help with non-Apple products.

  Click [details] for more information on this line.

  Problem: Computer is too slow

  Description:

  Computer takes a long time to adjust after the start, apps to take a while to load.

  Hardware Information: ⓘ

  MacBook Pro (13-inch, mid 2009)

  [Data sheet] - [User Guide] - [warranty & Service]

  MacBook Pro - model: MacBookPro5, 5

  1 2.26 GHz Intel Core 2 Duo CPU: 2 strands

  2 GB RAM - Insufficient RAM! Extensible - [Instructions]

  BANK 0/DIMM0

  ok 1 GB DDR3 1067 MHz

  BANK 1/DIMM0

  ok 1 GB DDR3 1067 MHz

  Bluetooth: Old - transfer/Airdrop2 not supported

  Wireless: en1: 802.11 a/b/g/n

  Battery: Health = Normal - Cycle count = 260

  Video information: ⓘ

  NVIDIA GeForce 9400M - VRAM: 256 MB

  Color LCD 1280 x 800

  Software: ⓘ

  OS X El Capitan 10.11.6 15G (31) - since the start time: about an hour

  Disc information: ⓘ

  Hitachi HTS545016B9SA02 disk0: (160,04 GB) (rotation)

  EFI (disk0s1) < not mounted >: 210 MB

  Recovery HD (disk0s3) < not mounted > [recovery]: 650 MB

  Macintosh HD (disk 1) /: 158,81 (Go 130,18 free)

  Encrypted AES - XTS unlocked

  Storage of carrots: disk0s2 159.18 GB Online

  MATSHITADVD-R UJ-868)

  USB information: ⓘ

  Built-in ISight from Apple Inc..

  Card reader Apple

  Apple Inc. BRCM2046 hub.

  Apple Inc. Bluetooth USB host controller.

  Apple Inc. Apple keyboard / Trackpad

  Computer, Inc. Apple IR receiver.

  Guardian: ⓘ

  Mac App Store and identified developers

  Launch system officers: ⓘ

  com.Apple.softwareupdate_notify_agent.plist [failure]

  [loaded] 7 tasks Apple

  [loading] 156 tasks Apple

  [operation] 56 tasks Apple

  [killed] 18 tasks Apple

  18 killed processes lack of RAM

  Launch system demons: ⓘ

  [loaded] 49 tasks Apple

  [loading] 150 tasks Apple

  [operation] 82 tasks Apple

  [killed] 10 tasks Apple

  10 killed process lack of RAM

  Launch demons: ⓘ

  [failure] com.adobe.fpsaud.plist (04 / 04/2016) [Support]

  User launch officers: ⓘ

  [failure] com.mackeeper.MacKeeper.Helper.plist (2015-04-21) [Support]

  Other applications: ⓘ

  [loading] 401 tasks Apple

  [operation] 153 tasks Apple

  [killed] 27 tasks Apple

  Plug-ins Internet: ⓘ

  FlashPlayer - 10.6: 21.0.0.213 - SDK 10.6 (2016-04-12) [Support]

  QuickTime Plugin: 7.7.3 (2016-07-08)

  Flash Player: 21.0.0.213 - SDK 10.6 (2016-04-12) obsolete! Update

  Default browser: 601 - SDK 10.11 (2016-07-08)

  OfficeLiveBrowserPlugin: 12.3.6 (2013-05-02) [Support]

  Silverlight: 5.1.41212.0 - SDK 10.6 (2016-02-07) [Support]

  iPhotoPhotocast: 7.0 (2011-12-04)

  User Plug-ins internet: ⓘ

  ZoomUsPlugIn: 3.5.44022.0314 - SDK 10.11 (2016-03-16) [Support]

  Safari extensions: ⓘ

  Adblock more - Eyeo GmbH - https://adblockplus.org/ (2016-08-04)

  3rd party preference panes: ⓘ

  Flash Player (04 / 04/2016) [Support]

  Time Machine: ⓘ

  Time Machine not configured!

  Top of page process CPU: ⓘ

  37% com.apple.WebKit.WebContent (3)

  14% WindowServer

  9% com.apple.WebKit.Networking

  4% kernel_task

  2% fontd

  Top of page process of memory: ⓘ

  Kernel_task 303 MB

  Com.apple.WebKit.WebContent (3) 193 MB

  Safari of 174 MB

  Mdworker (9) 115 MB

  Mds_stores 92 MB

  Virtual memory information: ⓘ

  31 MB of free RAM

  2.22 GB RAM (354 MB cache) used

  68 MB used Swap

  Diagnostic information: ⓘ

  5 August 2016, 06:28:45 self test - passed

  Simple enough: get more RAM. And delete malicious software MacKeeper.

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  I had this problem just after I installed Sierra on my MacBook Air.  First I tried to reset the SMC and the LANDAU.  This does not prevent fans constantly in the course of execution.  I then used the activity monitor to see what was possibly strain my system.  I noticed the "DCs" process was always sucking up to more than 90% of my CPU usage.  However, others said that it is normal after an upgrade of the OS and it should fall back down once the computer finishes its initial picture and analysis of the files.  So I run my MBA plugged nonstop for 36 hours in a row and the fans just kept running so that the process of "DCs" continued to drain at > 90% of CPU usage.  I also looked carefully at the activity monitor and saw that tasks such as analysis of photos had their own separate process "DCs".  So I dug further into what the devil "DCs" was really do with a lot of CPU resources.  Long story short, I found that there is some glitch in Sierra which causes the macOS stuck on a process involving the keychain and iCloud.

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