Help! font size & involve DS?

I think we need your help, friends.
DS is not enjoyng reading as musch as math…
I noticed he turns eyes away as soon as I show him the first word, then looks again…or not.
He is much more interested in what I do with the discarded cards (put it on the floor mum, put it here mum, etc).
We previously used the bigger words cards and he did recognize the words he already knew when I showed him the smaller ones. So I printed words with a small font (1").
But I think I used a wrong font and a wronh font size.
What do you think?

Also, i noticed that the flashcards are not so funny
as before when we played together, he used to find the words, cuddle the ones he love (dad, moon), he looked for a word I asked for and gave it to me and so on; with the flashcards i use them, he just have to look and he doesn’t have so much fun.
He is 2YO and doesn’t want to just sit and look.