It's not exactlly difficult information to find, and no, you don't have to "build your own" software. You just download and use something appropriate for the task.
Photoshop will very smoothly handle an image Preview might struggle with because it takes a big hunk of RAM and loads the image into it. It's designed specifically to do this. Other pro image programs: Pixelmator, Affinity Photo, Lightroom, etc. There's also GIMP, which is free and open-source, and probably works better than Preview for something like this.
** I don't have the same exact issue as OP so keep this in mind while reading my reply **
One of the reasons why I am asking is that, yes I bought a Macbook Pro that is "supposedly" overkill for my needs since all I do is some photo editing as a hobby. I obviously have a lack of deep knowledge about software and hardware (although I know the basics).
With that said, I was surprised when I could not "quickly" look through my photos using preview and I was wondering why. I understand now that some people explained here, that preview is not the right software for the job... but that's not something I could have figured out myself. Also... it might now be difficult to find this information for yourself but if I ask you which type of anchors you would choose tu support 25 000 kg? It's not exactly difficult to find but that does not mean it would be easy for you to actually find the right information.
I already have Affinity photo, but like photoshop or Pixelmator or some other softwares that were proposed here, they are not very useful to go through 1000 photos quickly... in Affinity Photo I would have to open the photos one by one and I can tell you it is now as quick as I expect it to be either. So I did some research myself but still didn't pull the trigger on a more "professional" software to do the job since most of them cost in the $200-$500.
I found out that for batch processing or viewing, Lightroom and capture one are the two that stood out the most but by searching online I could actually find hundreds of software that supposedly could do the job... but which one should I actually choose?
So... in the end all I really want is to view my photos really fast using the keyboard keys in order to find the right picture to edit which I expected preview to be the right software to do so. I don't need fancy bells and whistles... Which software would you recommend to do so, knowing that I already have affinity photo to edit the photos?