Vejam isto:
Analysis and Recommendations
TOTAL_HTML - Congratulations, the total number of HTML files on this page (including the main HTML file) is 1 which most browsers can multithread. Minimizing HTTP requests is key for web site optimization. Y
TOTAL_OBJECTS - Congratulations, the total objects on this page (including the HTML) is 9 which most browsers can multithread in a reasonable amount of time. Minimizing HTTP requests is key to minimizing object overhead (see Figure II-3: Relative distribution of latency components showing that object overhead dominates web page latency in Website Optimization Secrets for more details on how object overhead dominates web page latency.
TOTAL_IMAGES - Congratulations, the total number of images on this page is 3 . Most browsers can send multiple requests, which can speed display of multiple images.
TOTAL_CSS - Congratulations, the total number of external CSS files on this page is 2 . Because external CSS files must be in the HEAD of your HTML document, they must load first before any BODY content displays. Although they are cached, CSS files slow down the initial display of your page. Remember to place CSS files in the HEAD and JavaScript files at the end of the BODY to enable progressive display.
TOTAL_SIZE - Congratulations, the total size of this page is 14663 bytes. This page should load in 4.72 seconds on a 56Kbps modem. Based on current average web page size and composition trends you want your page to load in less than 20 seconds on a 56Kbps connection, with progressive feedback. Ideally you want your page to load in 3 to 4 seconds on a broadband connection, and 8 to 12 seconds for the HTML on a dialup connection. Of course, there's always room for improvement.
TOTAL_SCRIPT - Caution. The total number of external script files on this page is 3 , consider reducing this to one or two. Combine, refactor, and minify to optimize your JavaScript files. Ideally you should have one (or even embed scripts for high-traffic pages) on your pages. Consider suturing JavaScript files together at the server to minimize HTTP requests. Placing external JavaScript files at the bottom of your BODY, and CSS files in the HEAD enables progressive display in XHTML web pages.
HTML_SIZE - Congratulations, the total size of this HTML file is 8683 bytes, which less than 50K. Assuming that you specify the HEIGHT and WIDTH of your images, this size allows your HTML to display content in under 10 seconds, the average time users are willing to wait for a page to display without feedback.
IMAGES_SIZE - Congratulations, the total size of all your images is 3379 bytes, which is less than 50K. Even with a 50K HTML page this page should load in less than 20 seconds on a 56Kbps connection. Ideally each image should be less than 1160 bytes, to easily fit into one TCP-IP packet.
SCRIPT_SIZE - Congratulations, the total size of all your external scripts is 2535 bytes, which is less than 8K.
CSS_SIZE - Congratulations, the total size of your external CSS is 66 bytes, which is less than 8K.
MULTIM_SIZE - Congratulations, the total size of all your external multimedia files is 0 bytes, which is less than 10K.
A quantidade de Scripts é considerada alta (3), é aconcelhado 1 a 2 no máximo, esta lentidão tb pode ser afectada pela a acção de antivirus desactivei o meu e melhorou.
Espero ter assim contribuido para um forum mais fluido.
Regards
por Luis Afonso » 03 dez 2008, 13:09
não sei pois sou leigo na matéria 
