Hello Hanna,
I'm not sure as to why you are unable to view the link, could you elaborate?
In the link you have provide Mark had posted as below:
Hello Hanna,
Please find the answers to your inquiries below:
1. do you recommend me to make a new site? or to modify the current one?
What I would suggest you to do right now, is to upgrade your site to 3.x first. Then, only migrate JomSocial to EasySocial. Don't have to re-create another site.
2. from your experience what is making my site so slow like this?
It really depends on how you classified as "slow". How do you define "slow"? Is this related to the web host? Is this related to JomSocial? Maybe you can shed some lights on this and I would be able to provide a proper answer for you.
3. in case i decide to make a new site, is there away to move the members of the old site (i have 9k+) to the new easysocial? or what should i exactly do?
Yes, of course but you really don't want to make a new site as all your hardwork and effort would be lost. Identify the problems and see what can be escalated to fix this If your web host *****, no matter what Joomla extension you run would be slow