It might depend on what you use for editing. I use CapCut and in it you can cut the length of an image down to 0.5 at the lowest iirc. For this particular animation I used 5 images cut down to that length and looped it.
thank you so much everyone! i wasn’t on imgflip much yesterday so i didn’t have time to reply to everyone, but i had a great day and it was so nice to read so many comments wishing me a happy birthday!