My M1 Max MacBook Pro is slow?

[kmoreau48]

My new macbook pro 14" with the M1 max feels slow when viewing RAW images with preview. It takes between 1 to 3 seconds for each image to show.

RAW files are about 50MB each and viewing them directly on the macbook's SSD.

The SSD's speed is rated at 7.4 GBps, why does it take so long for the image preview to show?

 

[ponzicoinbro]

My new macbook pro 14" with the M1 max feels slow when viewing RAW images with preview. It takes between 1 to 3 seconds for each image to show.

RAW files are about 50MB each and viewing them directly on the macbook's SSD.

The SSD's speed is rated at 7.4 GBps, why does it take so long for the image preview to show?
View attachment 1882914

That’s pretty normal on any Mac with any CPU and any GPU.

It could be faster but that’s a Finder issue not a hardware issue.

Your top SSD speed is irrelevant. It only uses a few dozen megabytes of bandwidth to generate a thumbnail or play your file.

You‘re lucky you’re not using Windows or Linux file managers. They have no support for previewing raw videos.

 

[haruhiko]

Clearly it’s the Preview app’s issue.

 

[RossMacca]

My new macbook pro 14" with the M1 max feels slow when viewing RAW images with preview. It takes between 1 to 3 seconds for each image to show.

RAW files are about 50MB each and viewing them directly on the macbook's SSD.

The SSD's speed is rated at 7.4 GBps, why does it take so long for the image preview to show?
View attachment 1882914

Using Quick Look to view raw files has always been slow for some reason. I’m not sure if it’s trying to render the raw file instead of using the built in jpeg previews. Lightroom on my new Pro is lightning fast.

 

[ponzicoinbro]

Using Quick Look to view raw files has always been slow for some reason. I’m not sure if it’s trying to render the raw file instead of using the built in jpeg previews. Lightroom on my new Pro is lightning fast.

Quick Look and Finder have to decode and decompress a raw file or big compressed photos when you try to preview them. They could cache a low res version to make it faster but that would consume a lot of disk space for some users.

 

[3Rock]

My new macbook pro 14" with the M1 max feels slow when viewing RAW images with preview. It takes between 1 to 3 seconds for each image to show.

RAW files are about 50MB each and viewing them directly on the macbook's SSD.

The SSD's speed is rated at 7.4 GBps, why does it take so long for the image preview to show?
View attachment 1882914

Heads up. Depending on the size of your SSD, (SSD is rated at its highest speed to be 7.4 GB) You’re probably not getting that at all. Download and run Black Magic disc speed app to find out what your actual speed is for your individual M1