Anyone know of any reasons why my MacBook is running way slower after the SSD ugprade? When I had the original apple SSD everything ran faster. I don't understand what reasons the new ssd would be slower because when I ran the blackmagic test on my ADATA SSD it doubled the speed of my original apple one. My apple one was reading around 300-400. These are the stats and speeds of the current installed ADATA SSD.
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Have similar experience. Measurably slower - but overall it is faster.
Maybe the NVME connection takes some more computing - however it is not visible on the processor load.
Many days ago I am replacing the original SSD and the Sabrent Rocket 1TB with short Sintech adapter as the measurements are not correlated to my general feel about the speed. I feel that the computer is much faster, however all the measurements are the opposite. Maybe the more IOPS helps.
MBP 13" 2015 Early, 256 GB SSD (MZ-JPV2560/0A4), 8 GB memory.
In general: the Sabrent drive gives a faster (smoother) system - although the Blackmagic Speed test shows lower numbers.
On the original Apple SSD I measured around 1400/1400MB/s on the Sabrent I get only 1150/1250.
My system has PCIe 2.0 X4 connection, so the 1400 is really the maximum which I might reach.
I even went back to High Sierra on HFS+ file system, as the APFS was noticeably slower on my device since ever.
Measurements are not confirming it, but I feel a little lag on APFS. I kept HS until November, then I upgraded to BS.
Then did a clean install too on Big Sur (no time machine restore).
High Sierra did 1400/1400 on Sabrent too (HFS+ file system, Filevaoult off, indexing finished).
So APFS and NVME is slower than HFS+ and NVME.
The reason why I'm on Big Sur again is the fact, that I installed ssdpmenabler.kext on HS and after that my SSD started consuming 1,43 A peak. Checked the logs, it was loaded properly.
So with the same usage I do on BS it was consuming much more than BS without the ssdpmenabler.
Now on Big Sur (without the ssdpmenabler) it consumes 0,06-0,25 A. (that's nothing - even on battery).
I did a test, was able to browse the net and listen to music over BT headset for 7 hours (my battery is new).
So no ssdpmenabler anymore, and I'll play with the sleep/hibernation issue as the system consumes 2% per hour from battery. As I usually using it plugged in this is not an issue.
sudo pmset -a standbydelaylow 600
sudo pmset -a highstandbythreshold 50
sudo pmset -a standbydelayhigh 600
This should hibernate the content of the memory after 10 minutes.
Or simply set somehow the lid close action to shutdown (like in Windows Power Management)
I will not turn off SIP, it is not worth for me. No more testing from my side - finished here.
If there will be any other complications I simply buy a new computer as the 'hacking' not working and not safe.
And Sabrent will be used in another computer to enjoy the speed/capacity it offers. Original SSD goes back to computer and go on Ebay.