How do I set up a scratch disk for Adobe PSE 13.1?

Trying to get as much performance out of PSE 13.1, where the Healing brush can lag behind this Workstation, and yet have only 1 out of 6 cores is operational.
And its only generally using 1% to 3% of CPU power and 3,8GB RAM out of 32GB!

I noticed it said you should not have your 'Scratch disk' on the OS boot-up drive. But that it must placed on a fast drive.

I have a couple of Samsung 850 Evo 500GB SSD's configured [So relatively quick but not on a par with the Inter 750 PCIe OS SSD] - these are generally used for "Interim Storage" SSDs. Namely I keep the current shoots worth of images on the Intel 750 C drive, work on the edits there, but also copy the shoot to 2x SSDs on the fly, and archive to the 2 HGST 7,200 rpm 4TB back up drives at the end of the day.

So I assume I should place this 'Scratch disk" on the Samsung?
Not really sure what it does, or why I need it as I have 32 GB ECC 2133 Mhz DDR4 RAM - and generally only 3.8% of the CPU is being used ?
I wonder where my bottle neck is , in this system

Any ideas?

You have plenty of RAM, scratch disk is irrelevant. It could be that PSE, the cheap consumer version, is limited. On CS6, older i7, 16GB RAM, I've never noticed that kind of lag. Try turning off (or on) video acceleration in preferences, if PSE has it.

Hi Tim
On of the option said PSE used up to 71% of the ram. Thats about 21 GB, yet Intel XTU showed it using between 3.9 and 6.8 GB ? ( admittedly that only when I looked )

I cant see an option to turn off video accelleration,

It also had this lag on the laptop (i7 with 8GB Ram) think u might be right its the cheap version being limited

tim wrote in post #18063162
You have plenty of RAM, scratch disk is irrelevant. It could be that PSE, the cheap consumer version, is limited. On CS6, older i7, 16GB RAM, I've never noticed that kind of lag. Try turning off (or on) video acceleration in preferences, if PSE has it.

True...

For those using PS, here's some info from Adobe about ram needed. They seem to be saying if you have enough ram, a scratch disk won't be needed. Note how they say As much RAM as you can fit in your computer.

Photoshop uses random access memory (RAM) to process images. If Photoshop has insufficient memory, it uses hard-disk space, also known as a scratch disk, to process information. Accessing information in memory is faster than accessing information on a hard disk. Therefore, Photoshop is fastest when it can process all or most image information in RAM.

Perfectly Frank wrote in post #18092648
True...

For those using PS, here's some info from Adobe about ram needed. They seem to be saying if you have enough ram, a scratch disk won't be needed. Note how they say As much RAM as you can fit in your computer.

Photoshop uses random access memory (RAM) to process images. If Photoshop has insufficient memory, it uses hard-disk space, also known as a scratch disk, to process information. Accessing information in memory is faster than accessing information on a hard disk. Therefore, Photoshop is fastest when it can process all or most image information in RAM.

Possibly worthwhile, more detailed info at https://helpx.adobe.co​m …oshop-cc-performance.html

John from PA wrote in post #18092929
Possibly worthwhile, more detailed info at https://helpx.adobe.co​m …oshop-cc-performance.html

Thanks I will look at this link