If your theme template is done properly, the number of images shouldn't make any difference because they are "lazy loaded" which means they are only loaded when they appear. You don't have to be concerned with that on most templates.
I've loaded products (thousands) using CSV file through Matrixify but all without images. I have images in a separate folder. I've uploaded the images through admin settings in files named via the SKU numbers. Now I am wondering, is there a way to bulk upload images to the matching product? Or will I have to continue to do 1 by 1? Or copy and paste the link 1 by 1? Both are lengthy
We built a public app that does exactly what you guys are looking to do:
We were manually uploading photos to merchants stores and building hacky excel macros and decided to just build something. In order to use it you’d have to upload the images to Dropbox but then the app could match everything by SKU. Once you did this bulk import you could continue to use Matrixify and our app and you’ll never have to upload images one by one.
Happy to answer any questions.
Renars here from Matrixify.
If your image's names are SKUs and already are uploaded to Shopify Files, then you sure can construct a file in Excel with formulas that would import your Images to Products.
All images in Files would have the same URL apart from the actual image name.
Here we do have a great tutorial explaining how you could set up such an import file - https://matrixify.app/tutorials/bulk-import-images-shopify-from-computer/#HowtogetURLsforuploadedfil...
The tutorial explains a general idea on how to do that which should be simple enough if image names are SKUs.
If you need further assistance with it, please reach out to us directly and we will help you with that!