After I changed the slider image, why the image is it appearing smaller?
There is nothing to worry about, you can use the size Background Image (1920x800 Px) slider for good image quality, and your image quality will remain good.
Login Your wordpress Dashboard go appearance =>> Customizer =>> Frontpage Section =>> Slider Section =>> Slide, Upload jpg Image.
Image2
There is nothing to worry about, you can use the size Png image (345x400 Px) slider for good image quality, and your image quality will remain good.
Login Your wordpress Dashboard go appearance =>> Customizer =>> Frontpage Section =>> Slider Section =>> Slide, Upload Png Image.