My new MacBook Pro is running very slowly... help!

I ran "EtreCheck" and this is what it had to say:

Problem description:

slow

EtreCheck version: 2.1.8 (121)

Report generated February 28, 2015 at 8:15:08 PM CST

Download EtreCheck from http://etresoft.com/etrecheck

Click the [Click for support] links for help with non-Apple products.

Click the [Click for details] links for more information about that line.

Hardware Information: ℹ️

MacBook Pro (13-inch, Mid 2012) (Technical Specifications)

MacBook Pro - model: MacBookPro9,2

1 2.5 GHz Intel Core i5 CPU: 2-core

4 GB RAM Upgradeable

BANK 0/DIMM0

2 GB DDR3 1600 MHz ok

BANK 1/DIMM0

2 GB DDR3 1600 MHz ok

Bluetooth: Good - Handoff/Airdrop2 supported

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

Battery Health: Normal - Cycle count 40

Video Information: ℹ️

Intel HD Graphics 4000

Color LCD 1280 x 800

System Software: ℹ️

OS X 10.10.2 (14C109) - Time since boot: 0:17:18

Disk Information: ℹ️

APPLE HDD HTS545050A7E362 disk0 : (500.11 GB)

EFI (disk0s1) <not mounted> : 210 MB

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

Macintosh HD (disk1) / : 498.88 GB (449.07 GB free)

Encrypted AES-XTS Unlocked

Core Storage: disk0s2 499.25 GB Online

HL-DT-ST DVDRW GS41N

USB Information: ℹ️

Apple Inc. FaceTime HD Camera (Built-in)

Apple Inc. BRCM20702 Hub

Apple Inc. Bluetooth USB Host Controller

Apple Inc. Apple Internal Keyboard / Trackpad

Apple Computer, Inc. IR Receiver

Thunderbolt Information: ℹ️

Apple Inc. thunderbolt_bus

Gatekeeper: ℹ️

Mac App Store and identified developers

Kernel Extensions: ℹ️

/Library/Application Support/Symantec/AntiVirus

[loaded] com.symantec.kext.SymAPComm (100.1f1 - SDK 10.6) [Click for support]

/Library/Extensions

[loaded] com.symantec.kext.internetSecurity (5.2.1f2 - SDK 10.6) [Click for support]

[loaded] com.symantec.kext.ips (3.5.1f2 - SDK 10.6) [Click for support]

[loaded] com.symantec.kext.ndcengine (1.0f2 - SDK 10.6) [Click for support]

Launch Agents: ℹ️

[running] com.symantec.uiagent.application.plist [Click for support]

Launch Daemons: ℹ️

[loaded] com.adobe.fpsaud.plist [Click for support]

[loaded] com.microsoft.office.licensing.helper.plist [Click for support]

[loaded] com.symantec.liveupdate.daemon.ondemand.plist [Click for support]

[failed] com.symantec.liveupdate.daemon.plist [Click for support] [Click for details]

[not loaded] com.symantec.sep.migratesettings.plist [Click for support]

[running] com.symantec.sharedsettings.plist [Click for support]

[running] com.symantec.symdaemon.plist [Click for support]

User Launch Agents: ℹ️

[loaded] com.google.keystone.agent.plist [Click for support]

[running] com.microsoft.LaunchAgent.SyncServicesAgent.plist [Click for support]

[running] com.spotify.webhelper.plist [Click for support]

User Login Items: ℹ️

iTunesHelper Application (/Applications/iTunes.app/Contents/MacOS/iTunesHelper.app)

Dropbox Application (/Applications/Dropbox.app)

Spotify Application (/Applications/Spotify.app)

Internet Plug-ins: ℹ️

SharePointBrowserPlugin: Version: 14.4.7 - SDK 10.6 [Click for support]

FlashPlayer-10.6: Version: 16.0.0.305 - SDK 10.6 [Click for support]

Flash Player: Version: 16.0.0.305 - SDK 10.6 [Click for support]

QuickTime Plugin: Version: 7.7.3

Default Browser: Version: 600 - SDK 10.10

3rd Party Preference Panes: ℹ️

Flash Player [Click for support]

Symantec QuickMenu [Click for support]

Time Machine: ℹ️

Time Machine not configured!

Top Processes by CPU: ℹ️

47% CalendarAgent

20% recentsd

17% CalNCService

8% WindowServer

7% Google Chrome

Top Processes by Memory: ℹ️

348 MB CalendarAgent

271 MB CalNCService

200 MB recentsd

171 MB Google Chrome

94 MB mds_stores

Virtual Memory Information: ℹ️

93 MB Free RAM

1.74 GB Active RAM

1.30 GB Inactive RAM

632 MB Wired RAM

2.79 GB Page-ins

24 MB Page-outs

Diagnostics Information: ℹ️

Feb 28, 2015, 07:50:34 PM Self test - passed

Feb 26, 2015, 01:22:42 PM /Users/[redacted]/Library/Logs/DiagnosticReports/garcon_2015-02-26-132242_[reda cted].crash

Feb 28, 2015, 11:33:52 AM /Library/Logs/DiagnosticReports/LegacyFileVaultMessageTracer_2015-02-28-113352_ [redacted].crash

Feb 26, 2015, 07:51:30 PM /Library/Logs/DiagnosticReports/CalendarAgent_2015-02-26-195130_[redacted].cpu_ resource.diag [Click for details]

Feb 25, 2015, 09:41:14 PM /Library/Logs/DiagnosticReports/SymDaemon_2015-02-25-214114_[redacted].cpu_reso urce.diag [Click for details]

Feb 25, 2015, 08:51:33 PM /Users/[redacted]/Library/Logs/DiagnosticReports/Spotify Helper_2015-02-25-205133_[redacted].crash

Please let me know how to fix this!