How do I make the environment more performant...

Hi guys... I have a question.

what is more performant for the entire game if I am building the platform environment where the player jumps arround:

to make the platform from

1 ) tiled map

2 ) tiled background

3 ) normal sprites

Which option is the mest in ur opinion ?

Other question:

My player and enemies are arround 200*200 pixels with each 15-20 frames of animation... is that fine ...or too much ?

thanks