Too much time to load table

[nanmaniac]

Hi there,
I load a html table from a database with ajax and PHP. What I load is the whole <table.../table>. This table contains ~2847 rows and 8 columns. The query from MYSQL is fast but when it starts loading the TS, my loading image pauses and Chrome even shows a window telling me if I want to wait or cancel. When I click wait, it finishes loading and everything is working fine.
I wanted to know if there is any way of speeding this loading process.
I am using the following widgets: "filter","zebra" and I lately get used to the "pager" widget.
I am really open to new suggestions and they will be welcomed.
I have a testing website where you can see what's going on:
https://pf2easy.com/items Click on any element list (they are not functional yet) and click on the FILTER button.