Solved! Extremely Slow Macbook Pro

Jan 23, 2019
Hi everyone,

I've recently upgraded my late 2011 A1278 13" Macbook Pro, installing an SSD in the main SATA socket, and the previous HDD in the optical bay.

After making the install, my laptop performance has decreased a lot. I can't even run Safari or Google Chrome without a Youtube video getting lag. I reinstalled OSX twice, but lag continued.

I'll post my EtreCheck report . I know I have a bad battery (I'm waiting the new one I bought), and also recently disabled the Gatekeeper for personal reasons. I'm just wondering why the Kernel panics.

Hope you can help me to fix it, thank you so much.

EtreCheck version: 5.1 (5A022)
Report generated: 2019-01-23 22:44:34
Download EtreCheck from
Runtime: 6:44
Performance: Below Average

Problem: Computer is too slow

Major Issues:
Anything that appears on this list needs immediate attention.
No Time Machine backup - Time Machine backup not found.
Gatekeeper disabled - Gatekeeper security protection is disabled. This computer is at risk of malware infection.
Kernel panics - This system has experienced kernel panics. This could be a sign of hardware failure.
Heavy CPU usage - Some processes are using an unusually high amount of CPU.

Minor Issues:
These issues do not need immediate attention but they may indicate future problems.
High battery cycle count - Your battery may be losing capacity.
Apps with heavy CPU usage - There have been numerous cases of apps with heavy CPU usage.
Low performance - EtreCheck report took over 5 minutes to run. This is unusual.
Vintage hardware - This machine may be considered vintage.
Abnormal shutdown - Your machine shut down abnormally.

Hardware Information:
MacBook Pro (13-inch, Late 2011) - Vintage!
MacBook Pro Model: MacBookPro8,1
1 2,4 GHz Intel Core i5 (i5-2435M) CPU: 2-core
8 RAM - At maximum
BANK 0/DIMM0 - 4 GB DDR3 1333 ok
BANK 1/DIMM0 - 4 GB DDR3 1333 ok
Battery: Health = Replace Now - Cycle count = 1248

Video Information:
Intel HD Graphics 3000 - VRAM: 512 MB
Color LCD 1280 x 800

disk0 - KINGSTON SA400S37240G 240.06 GB (Solid State - TRIM: Yes)
Internal SATA 6 Gigabit Serial ATA
disk0s1 - EFI (MS-DOS FAT32) [EFI] 210 MB
disk0s2 - M*****D (Journaled HFS+) 239.20 GB (50.71 GB used)
disk0s3 - Recovery HD (Journaled HFS+) [Recovery] 650 MB

disk1 - TOSHIBA MQ01ABD100 1.00 TB (Mechanical - 5400 RPM)
Internal SATA 6 Gigabit Serial ATA
disk1s1 - EFI (MS-DOS FAT32) [EFI] 210 MB
disk1s2 - M****S (Journaled HFS+) 700.35 GB (539.08 GB used)
disk1s3 - Recovery HD (Journaled HFS+) [Recovery] 650 MB
disk1s4 - B******P (MS-DOS FAT12) 299.00 GB (149.36 GB used)

Mounted Volumes:
disk0s2 - M*****D 239.20 GB (188.23 GB free)
Journaled HFS+
Mount point: /

disk1s2 - M****S 700.35 GB (161.26 GB free)
Journaled HFS+
Mount point: /Volumes/M****S

disk1s4 - B******P 299.00 GB (149.64 GB free)
Mount point: /Volumes/B******P

Interface en0: Ethernet
Interface fw0: FireWire
Interface en1: Wi-Fi
802.11 a/b/g/n
Interface en3: Bluetooth PAN
Interface bridge0: Thunderbolt Bridge

System Software:
OS X El Capitan 10.11.6 (15G31)
Time since boot: Less than an hour

System Status
Gatekeeper Anywhere
System Integrity Protection Enabled

Startup Items:
FanControlDaemon Path: /Library/StartupItems/FanControlDaemon

System Launch Agents:
[Not Loaded] 8 Apple tasks
[Loaded] 160 Apple tasks
[Running] 70 Apple tasks

System Launch Daemons:
[Not Loaded] 47 Apple tasks
[Loaded] 159 Apple tasks
[Running] 84 Apple tasks
[Other] One Apple task

Launch Daemons:
[Loaded] com.stclairsoft.AppTamerAgent.plist (St. Clair Software - installed 2019-01-12)

User Launch Agents:
[Loaded] (Google, Inc. - installed 2018-12-29)

User Login Items:
StartUpHelper (Spotify - installed 2018-12-18)
(/Applications/ (Apple - installed 2018-12-29)

Internet Plug-ins:
Default Browser: 601 (installed 2019-01-14)
QuickTime Plugin: 7.7.3 (installed 2019-01-14)

3rd Party Preference Panes:
Fan Control (installed 2019-01-01)

Time Machine:
Time Machine Not Configured!

System Load: 8.02 (1 min ago) 7.81 (5 min ago) 7.29 (15 min ago)
Nominal I/O speed: 1.22 MB/s
File system: 68.38 seconds
Write speed: 284 MB/s
Read speed: 376 MB/s

CPU Usage:
Type Overall
System 8 %
User 27 %
Idle 65 %

Top Processes by CPU:
Process (count) CPU (Source - Location)
Google Chrome Helper (11) 71.56 % (Google, Inc.)
Google Chrome 52.62 % (Google, Inc.)
EtreCheckPro 50.16 % (Etresoft, Inc.)
kernel_task 3.38 % (Apple)
WindowServer 3.18 % (Apple)

Top Processes by Memory:
Process (count) RAM usage (Source - Location)
Google Chrome Helper (11) 1.21 GB (Google, Inc.)
kernel_task 658 MB (Apple)
EtreCheckPro 375 MB (Etresoft, Inc.)
mdworker (6) 296 MB (Apple)
Google Chrome 292 MB (Google, Inc.)

Virtual Memory Information:
Available RAM 1.37 GB
Free RAM 737 MB
Used RAM 6.63 GB
Cached files 669 MB
Swap Used 0 B

Software Installs (past 30 days):
Install Date Name (Version)
2018-12-29 MRTConfigData (1.38)
2018-12-30 XProtectPlistConfigData (2101)
2018-12-30 Serato DJ Pro (
2018-12-30 WavesLicenseEngine.bundle (1.0)
2019-01-11 KORG Legacy Collection - ANALOG EDITION 2007 (
2019-01-11 KORG Legacy Collection - DIGITAL EDITION (
2019-01-11 LegacyCell (
2019-01-11 M1 (
2019-01-11 MDE-X (
2019-01-11 MonoPoly (
2019-01-11 MS-20 (
2019-01-11 Polysix (
2019-01-11 WAVESTATION (
2019-01-11 iZotope Ozone 5 Advanced (1.0)
2019-01-11 Avast Security (13.11)
2019-01-15 Disk Speed Test (3.2)
2019-01-15 Novabench (4.0.1)
2019-01-23 Gatekeeper Configuration Data (160)

Diagnostics Information (past 7 days):
2019-01-23 22:01:22 rpcsvchost CPU

2019-01-23 21:58:47 Last Shutdown Cause: 0 - Power loss

2019-01-21 22:29:55 Logic Pro Crash
/Applications/Logic Pro
objc_msgSend() selector name: isKindOfClass:
Performing @selector(click_OK:) from sender MAKitButton 0x7fc0e5cc9f70

2019-01-12 13:27:55 Kernel Panic

End of report
Dec 10, 2018
" Kernel panics - This system has experienced kernel panics. This could be a sign of hardware failure."

This explains almost everything. Remove the SSD and get back with the old setup and check. If things are back to normal, there's some issue with your SSD
Jan 23, 2019

Hey! Thanks for replying.
Unfortunately I deleted OSX from my HDD so I can't start it from there. Anyways, I tested the SSD in another PC and it works well. Also I switch them, with the SSD in the optical bay and no difference was noticed. I believe it is not the SSD.
Jan 23, 2019

Hey! I dont have done anything about the RAM, but ill try tonight when I get home.
Safe mode is extremely slow, even more than normal one. Is this normal?


Safe mode should be faster if the issue is caused by something running in the background.
If the RAM doesn't help, open Activity Monitor and see if there are any processes using a lot of CPU or RAM.
I know for a fact that not having a battery in some models can reduce performance quite a bit, so it is entirely possible that a bad battery might also cause this. I was able to run Geekbench without the battery and then with the battery and without it I had about half the score that was expected for that model.
Jan 23, 2019

Okay! I'll try the RAM setting tonight, and tell you later. Probably on the next days, before the new battery arrives, ill test it with a friend's battery, and see what happens.

Thank you so much.
Jan 23, 2019

Hey, I test both Ram card and they are all ok. I also disconnect the HDD and try only with the SSD functioning, and it doesnt change anything. The behavior still very slow. I was thinking if it could be the Logic Board? I tested again the SSD with Blackmagic software, and it seems it is ok.

I think the only hope is to wait until new battery and hope it upgrade the performance.

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