Mojave or High Sierra? Does Mojave slow down ?

[katbel]

I read a lot of comparisons but when Mojave just came out. Now they must have fixed most of it
Is it faster or slower than High Sierra? I have an iMac 2017 Radeon graphic card, 3.4 Ghz

 

[katbel]

Anyone ?! All happy? ?

 

[wellander1]

It is slower on spinning hdds but fast on ssds due to the APFS file system.

 

[katbel]

It is slower on spinning hdds but fast on ssds due to the APFS file system.

thanks for the answer but the iMac has a Fusion drive HDD most of the files and ssd little part

 

[wellander1]

Stay on 10.13 then.
Remember it will not be supported later in the year.

 

[Fishrrman]

If you currently have High Sierra, you could upgrade to Mojave.
I would NOT try Catalina -- too many problems.

You can download Mojave using this link:
Get macOS Mojave

BEFORE you upgrade, I would recommend cloning your HS install to an external drive using either CarbonCopyCloner or SuperDuper. Both are free to download and use for 30 days.
Having a cloned backup makes it EASY to "get back" if you don't like the upgrade or if something goes wrong.

 

[katbel]

If you currently have High Sierra, you could upgrade to Mojave.
I would NOT try Catalina -- too many problems.

You can download Mojave using this link:
Get macOS Mojave

Thanks for the link, Catalina is already in my NO FLY ZONE

 

[katbel]

I'm going to try partitioning my disk and install Mojave just there and see how it behaves
I already read the fusion drive will stay put with High Sierra

 

[Wowfunhappy]

High Sierra was noticeably faster on my 2015 Macbook Air. I'd stay put for the time being unless you have a reason to upgrade.

 

[katbel]

Update: I did update to Mojave but using an external ssd (Crucial x8) with a clean install
Slow to start but then it seems faster in all other tasks
Installed the old iTunes 12.6.5.3 : lot of work for just that
but now everything works the way I like it ?

Thanks to everyone for their tips and a special thanks to bogdanw for his precious scripts!