Add theme size?

hi in functions php theme creates
add_theme_support( ‘post-thumbnails’ );
add_image_size(‘newsanchor-large-thumb’, 730);
add_image_size(‘newsanchor-carousel-thumb’, 410, 260, true);
add_image_size(‘newsanchor-medium-thumb’, 435);
add_image_size(‘newsanchor-small-thumb’, 80, 60, true);

add this sizes 4 images size in wp content uploads. i want to ask that i used ‘simple image sizes’’ plugin and in setttings i did all: 0 . and now just one image adding ftp the uploads. İf i use this and just one image loads to all thumbs, theme have problem or host problem? cpu problem?

Hi,

Well, if it’s the image size is too big it will cause the site to load slower, if it’s too small it might look ugly.

Thank you. Well but in content uploads , theme creates 4 images for one image it is normal? Better? Or i disable this in functions can be problem , you say?