Sierra e IMac vecchiotto

[Lux]

Ciao,
vi presento il mio Mac e vi vorrei chiedere anche una opinione. Da un po di tempo a qesta parte è un po lento (nell'apertura dei programmi, nell'accensione, con safari ecc.). Faccio periodicamente tutte le azioni di manutenzione: pulitura tramite l'utilità disco, riparazione permessi, resettare safari, cookies...insomma penso di non tralasciare nulla. Per un po, dopo le manutenzioni varie, la macchina va bene ma dopo qualche giorno comincio a vedere la maledetta palla da spiaggia multicolore.
Per questo motivo ho pensato di di passare a sierra solo che il requisito di compatibilità è "ultima parte 2009" mentre il mio è inizi 2009. Lo faccio lo stesso? - (scusate la domanda retorica)
Ho pensato di aggiornarlo magari ad uno inferiore a sierra (es. el capitan), ne varrebbe la pena?
Cosa ne pensate?
Grazie
L

[Lux]

EtreCheck version: 3.4.5 (455)
Report generated 2017-09-22 17:11:17
Download EtreCheck from https://etrecheck.com
Runtime: 5:06
Performance: Below Average

Click the [Lookup] links for more information from Apple Support Communities.
Click the [Details] links for more information about that line.
Click the [Clean up] link to delete unused files.

Problem: Beachballing

Hardware Information: ⓘ
iMac (20-inch, Early 2009)
[Technical Specifications] - [User Guide] - [Warranty & Service]
iMac - model: iMac9,1
1 2.66 GHz Intel Core 2 Duo (Duo) CPU: 2-core
4 GB RAM Upgradeable - [Instructions]
BANK 0/DIMM0
2 GB DDR3 1067 MHz ok
BANK 1/DIMM0
2 GB DDR3 1067 MHz ok
Handoff/Airdrop2: not supported
Wireless: en1: 802.11 a/b/g/n

Video Information: ⓘ
NVIDIA GeForce 9400 - VRAM: 256 MB
iMac 1680 x 1050

Disk Information: ⓘ
Hitachi HDT721032SLA380 disk0: (320,07 GB) (Rotational)
[Show SMART report]
(disk0s1) [EFI]: 210 MB
Macintosh HD (disk0s2 - Journaled HFS+) / [Startup]: 319.21 GB (157.28 GB free)
(disk0s3) [Recovery]: 650 MB

OPTIARC DVD RW AD-5670S ()

USB Information: ⓘ
EHCI Root Hub Simulation
EHCI Root Hub Simulation
Apple Inc. Built-in iSight
Apple Inc. Keyboard Hub
Apple Inc. Apple Keyboard
OHCI Root Hub Simulation
Apple Inc. BRCM2046 Hub
Apple Inc. Bluetooth USB Host Controller
OHCI Root Hub Simulation
Apple Computer, Inc. IR Receiver

Virtual disks: ⓘ
CleanMyMac 3 (disk1s1 - HFS+) /Volumes/CleanMyMac 3 : 80 MB (9 MB free)
Physical disk: (null) 80 MB (9 MB free)

System Software: ⓘ
OS X Mavericks 10.9.5 (13F1911) - Time since boot: about 6 hours

Gatekeeper: ⓘ
Mac App Store and identified developers

Clean up: ⓘ
com.apple.CSConfigDotMacCert-@me.com...es.Agent.plist
/System/Library/Frameworks/CoreServices.framework/Frameworks/OSServices.framework/Versions/A/Support/CSConfigDotMacCert -l ~/Library/Logs/CSConfigDotMacCert-@me.com-SharedServices.log -u [redacted]@me.com -t SharedServices -s
Executable not found!
~/Library/LaunchAgents/com.google.GoogleContactSyncAgent.plist
/System/Library/PrivateFrameworks/GoogleContactSync.framework/Versions/A/Resources/gconsync --sync com.google.ContactSync --periodic
Executable not found!
2 orphan files found. [Clean up]

System Launch Agents: ⓘ
[not loaded] 6 Apple tasks
[loaded] 136 Apple tasks
[running] 42 Apple tasks

System Launch Daemons: ⓘ
[not loaded] 48 Apple tasks
[loaded] 136 Apple tasks
[running] 64 Apple tasks

Launch Agents: ⓘ
[failed] com.adobe.ARMDCHelper.cc24aef4a1b90ed56a725c38014c 95072f92651fb65e1bf9c8e43c37a23d420d.plist (Adobe Systems, Inc. - installed 2017-06-03) [Lookup]
[loaded] com.google.keystone.agent.plist (Google, Inc. - installed 2017-07-10) [Lookup]
[loaded] com.oracle.java.Java-Updater.plist (? ac002fc9 72ac4dde - installed 2017-09-12) [Lookup]
[running] com.trusteer.rapport.rapportd.plist (Trusteer LTD - installed 2017-07-12) [Lookup]

Launch Daemons: ⓘ
[loaded] com.adobe.ARMDC.Communicator.plist (Adobe Systems, Inc. - installed 2017-06-03) [Lookup]
[loaded] com.adobe.ARMDC.SMJobBlessHelper.plist (Adobe Systems, Inc. - installed 2017-06-03) [Lookup]
[loaded] com.adobe.fpsaud.plist (? 2afb3af7 4898e928 - installed 2017-08-29) [Lookup]
[loaded] com.google.keystone.daemon.plist (Google, Inc. - installed 2017-07-27) [Lookup]
[loaded] com.microsoft.office.licensing.helper.plist (? 6d8cb30e afb3bef0 - installed 2010-08-25) [Lookup]
[loaded] com.oracle.java.Helper-Tool.plist (Shell Script e3fefdd2 - installed 2017-07-22) [Lookup]
[running] com.trusteer.rooks.rooksd.plist (Trusteer LTD - installed 2017-06-22) [Lookup]

User Launch Agents: ⓘ
[failed] com.apple.CSConfigDotMacCert-@me.com...es.Agent.plist (? ? ? - installed 2009-07-14) - /System/Library/Frameworks/CoreServices.framework/Frameworks/OSServices.framework/Versions/A/Support/CSConfigDotMacCert: Executable not found!
[not loaded] com.apple.FolderActions.enabled.plist (Apple, Inc. - installed 2016-05-16)
[not loaded] com.apple.FolderActions.folders.plist (Shell Script 61e350f9 - installed 2016-05-16)
[failed] com.google.GoogleContactSyncAgent.plist (? f0a8db00 0 - installed 2010-05-14) [Lookup] - /System/Library/PrivateFrameworks/GoogleContactSync.framework/Versions/A/Resources/gconsync: Executable not found!
[running] com.spotify.webhelper.plist (Spotify - installed 2017-05-23) [Lookup]

Internet Plug-ins: ⓘ
Conviva: 1.10.8 (installed 2009-02-03) [Lookup]
o1dbrowserplugin: 5.41.3.0 (installed 2015-12-31) [Lookup]
Google Earth Web Plug-in: 7.1 (installed 2013-07-12) [Lookup]
Default Browser: 537 (installed 2014-09-27)
Flip4Mac WMV Plugin: 2.4.1.4 (installed 2012-01-21) [Lookup]
AdobePDFViewerNPAPI: 17.012.20098 (installed 2017-09-05) [Lookup]
FlashPlayer-10.6: 27.0.0.130 (installed 2017-09-12) [Lookup]
AmazonMP3DownloaderPlugin101749: Unknown
Silverlight: 5.1.10411.0 (installed 2012-07-06) [Lookup]
QuickTime Plugin: 7.7.3 (installed 2016-09-27)
Flash Player: 27.0.0.130 (installed 2017-09-12) [Lookup]
googletalkbrowserplugin: 5.41.3.0 (installed 2015-12-11) [Lookup]
iPhotoPhotocast: 7.0 (installed 2010-04-01)
AdobePDFViewer: 17.012.20098 (installed 2017-09-05) [Lookup]
SharePointBrowserPlugin: 14.1.3 (installed 2013-11-13) [Lookup]
JavaAppletPlugin: Java 8 Update 144 build 01 (installed 2017-09-12) Check version

User internet Plug-ins: ⓘ
Picasa: 1.0 (installed 2011-02-23) [Lookup]

Safari Extensions: ⓘ
[enabled] AdBlock - BetaFish, Inc. - https://getadblock.com (installed 2017-07-27)
[not loaded] DuckDuckGo - DuckDuckGo - http://duckduckgo.com (installed 2017-02-15)
[enabled] SafariRestore - SweetP Productions - http://sweetpproductions.com/extensions/extensions.htm (installed 2015-06-12)

3rd Party Preference Panes: ⓘ
Flash Player (installed 2017-08-29) [Lookup]
Java (installed 2017-09-12) [Lookup]
Trusteer Endpoint Protection (installed 2017-07-12) [Lookup]

Time Machine: ⓘ
Skip System Files: NO
Auto backup: YES
Volumes being backed up:
Macintosh HD: Disk size: 319.21 GB Disk used: 161.94 GB
Destinations:
Elements2 [Local]
Total size: 249.92 GB
Total number of backups: 45
Oldest backup: 31/05/15 20:15
Last backup: 11/09/17 13:25
Size of backup disk: Too small
Backup size 249.92 GB < (Disk used 161.94 GB X 3)

Top Processes by CPU: ⓘ
7% com.apple.WebKit.WebContent
5% WindowServer
5% Dock
3% Safari
2% kernel_task

Top Processes by Memory: ⓘ
605 MB com.apple.WebKit.WebContent
508 MB kernel_task
422 MB Safari
371 MB com.apple.WebKit.WebContent
284 MB com.apple.WebKit.WebContent

Top Processes by Energy Use: ⓘ
34.84 com.apple.WebKit.WebContent
18.48 WindowServer
7.62 Safari
3.58 Dock
2.80 CleanMyMac 3

Virtual Memory Information: ⓘ
257 MB Available RAM
8 MB Free RAM
3.75 GB Used RAM
249 MB Cached files
0 B Swap Used

Software installs: ⓘ
Adobe Acrobat Reader DC (17.012.2009: (installed 2017-09-05)
Adobe Flash Player: (installed 2017-09-12)
Java 8 Update 144: (installed 2017-09-12)

Install information may not be complete.

[avrobay]

Puoi aggiornarlo al massimo fino a El Capitain.
E io al tuo posto lo farei. Prima però raddoppierei la RAM. Il massimo per il tuo modello è 8.0 GB

[Lux]

Grazie mille. Lo prendero in considerazione.
L