There are many reasons why a page may load slowly, e.g. the size of the pipe to the internet, the traffic hitting the web-hosting service and/or the server hosting your website the robustness of the web server etc.
But at this juncture you just need to ensure that your website’s design is not a contributing factor when a customer experiences a slow download.
So keep your homepage less than 200 KB in size. By doing this, your website will load in less than 20 seconds with a 56 K modem.
If your must display graphics on your homepage keep in mind the different graphic formats that are available each with its own qualities and capabilities an what is best to use in specific situation.
Most website based images use “indexes color” which is only 8 bits (one byte) of color per pixel. This means that the image can display only 256 colors.
If you pick the right colors, even a color photo can be made to look presentable on your website.
GIF and JPEG (also known as JPG) are the most commonly supported formats throughout the world. GIF stands for “Graphic Interchange (Image) format.”
CompuServe developed the GIF format so that its subscribers could send image files to each other and the images could be viewed in different kinds of computers.
JPEG stands for “Joint Photographic Experts Group.” JPEG s perhaps the bets format to use photographs since it support full 24 bit color.
Performance inside the Website