performance and memory usage

RUPAS

hello my game have this data

Frames per second- 60,84

Images- 174,3 mb !!!!!!!!! <------- because??? how I can fix it??
Sounds- 5,9 mb
Game engine- 8,1 mb
Other: 20,7 mb
Total: 209 mb!!!!!!!!!

RUPAS

HOW CAN I LOOK AT THE PICTURES OF DPI? AND CHANGE IT? 828 IS MY PICTURES AS PROYECT OPTIMIZER GS, ALL I HAVE TO CHANGE ONE TO ONE??

RUPAS

well..., gs optimizer according to all my images are "res 72"

RUPAS

tshirtbooth is true ...... some images have 72.009 ...... but I have 828 pictures in my project, there is some software to change the dpi of all pictures at once??