Macbook air 2013 11 slowed down by High Sierra

[TokMok3]

I install High Sierra on a MacBook Air (mid)2013 11 and the ssd drive speed was:

write: 87
read: 520

Then, I installed Sierra and the speeds are:

write: 311
read: 640

Does any body knows if this is caused by the new file system?

 

[Audit13]

I have high Sierra on my early 2015 air and late 2013 13" pro. Both are formatted in apfs and speed is the same as it was worth hfs.

 

[Aznbull]

I install High Sierra on a MacBook Air (mid)2013 11 and the ssd drive speed was:

write: 87
read: 520

Then, I installed Sierra and the speeds are:

write: 311
read: 640

Does any body knows if this is caused by the new file system?

I've also have the same problem my Macbook air 11 from 2012 is doing W 280, R 475 in MacOS HS, I also have W10 bootcamp and in W10 it did W 480, R 480. What's wrong with the SSD performance in MacOS ?
I've tried resetting SMC, enable TRIM are there more we I can do to increase writing-speed performance for the SSD.

 

[TokMok3]

I've also have the same problem my Macbook air 11 from 2012 is doing W 280, R 475 in MacOS HS, I also have W10 bootcamp and in W10 it did W 480, R 480. What's wrong with the SSD performance in MacOS ?
I've tried resetting SMC, enable TRIM are there more we I can do to increase writing-speed performance for the SSD.

Decided to run Sierra until Mojave final release.