Hallo zusammen!
Ich stehe vor den gleichen Problem, mein iMac dürfte ähnlich alt sein, habe aber noch OS High Sierra drauf.
Wärt ihr so nett, auch meinen Bericht von etrecheck mal anzusehen.
Danke, Gedonix
P.S: mich wundert, dass beim check "performance: good" rauskommt; aber 30sec warten, bis eine einfache pages-Datei geöffnet wird oder das Gleiche beim Öffnen des firefox finde ich zu langsam.
Das Speed-Problem war übrigens schon da, bevor ich AntiVir von avira installiert habe; damit wollte ich nur schauen, ob irgendein Virus oder so alles bremst
EtreCheck version: 6.1.9 (6B057)
Report generated: 2020-02-11 09:27:47
Download EtreCheck from https://etrecheck.com
Runtime: 4:58
Performance: Good
Problem: Computer is too slow
Description:
iMac starts very slow; opening files/apps last very long
Major Issues:
Anything that appears on this list needs immediate attention.
Time Machine backup out-of-date - The last Time Machine backup is over 10 days old.
Minor Issues:
These issues do not need immediate attention but they may indicate future problems or opportunities for improvement.
Clean up - There are orphan files that could be removed.
Unsigned files - There are unsigned software files installed. They appear to be legitimate but should be reviewed.
System modifications - There are a large number of system modifications running in the background.
32-bit Apps - This machine has 32-bits apps will not work on macOS 10.15 “Catalina”.
Hardware Information:
iMac (21.5-inch, Late 2013)
iMac Model: iMac14,3
1 2,9 GHz Intel Core i5 (i5-4570S) CPU: 4-core
8 GB RAM - Upgradeable by an Apple Authorized Service Provider
BANK 0/DIMM0 - 4 GB DDR3 1600
BANK 1/DIMM0 - 4 GB DDR3 1600
Video Information:
NVIDIA GeForce GT 750M - VRAM: 1024 MB
iMac 1920 x 1080
Drives:
disk0 - APPLE HDD HTS541010A9E662 1.00 TB (Mechanical - 5400 RPM)
Internal SATA 3 Gigabit Serial ATA
disk0s1 - EFI (MS-DOS FAT32) [EFI] 210 MB
disk0s2 - Macintosh HD (Journaled HFS+) 999.35 GB (506.87 GB used)
disk0s3 - Recovery HD [Recovery] 650 MB
Mounted Volumes:
disk0s2 - Macintosh HD
999.35 GB (506.87 GB used, 494.00 GB available, 492.21 GB free)
Journaled HFS+
Mount point: /
Network:
Interface SAMSUNG_MDM: SAMSUNG Modem
Interface Bluetooth-Modem: Bluetooth DUN
Interface en0: Ethernet
Interface en1: Wi-Fi
Interface en4: Bluetooth PAN
Interface bridge0: Thunderbolt Bridge
Interface en5: iPhone
iCloud Quota: 3.54 GB available
System Software:
macOS High Sierra 10.13.6 (17G11023)
Time since boot: About an hour
Notifications:
Thunderbird.app
one notification
Avira.app
6 notifications
EtreCheckPro.app
one notification
Security:
Gatekeeper: App Store and identified developers
System Integrity Protection: Enabled
Antivirus software: Apple and Avira