This is just a basic tip for overlay (or any script,html etc..) user out there. The fastest way to load your profile and avoid too much load:
1. Dont use scripts like Merlin Wizard, the shaking thing, scrolling in your browser, those scripts that prompt you to do this-that. Ya know it will also give you headache hehhe.
2. If you have Youtube or any playlist in your profile, resize it to a smaller dimension.
3. Dont use too large and too many animated images, pictures, comments etc..You can resize them too.
4. Dont use flash or any flash games in your profile. If you want, take the risk.
5. Delete cache and cookies in your browser.
6. If you are using html codes, make sure your code is clean and in proper places.
....and in short..short and few is better .
That's it i suppose. I'll add more if i remember the others.
*thnx to Arvin for some tips ^^,