Is it worth it to use mono buttons in an android app?

Question

Android

I want to write applications for the development of memory. The screen is divided into cells. The program changes the color of three cells one by one, and then makes all the cells the same. The person presses in the same sequence on the same cells. Then the program changes the color of 4 cells, 5 and so on until the person misses.
I'm trying to implement this using GridLayout and place a button in each cell. On the emulator, when there are a lot of buttons on the screen, the standard animation slows down in them, it’s not pleasant for the eye, but on a smartphone, on the contrary, when there are more buttons, the animation is more pleasant than when there are few.
Should I put a lot of buttons, or is it better to use ImageView or another approach?