Sluggish performance when sorting large column

Sluggish performance when sorting large column

Hi,

I have an embedded spreadsheet on my website and one sheet has quite a long column of data - about 700 rows and counting daily. When trying to sort or filter this data on the embedded version, it simply refuses to respond. The column or selection stays in green but no matter how long it is left to do it's working, nothing happens.

As the data contained on the spreadsheet is intended for visitors to do exactly this and is a main reason why they come to my website, this is very frustrating. Especially as I didn't think 700 rows is particularly large and as mentioned above, it grows by one row each day.

Is there anything I can do to optimise my spreadsheet to make it usable?

The url for my site is:  http://www.footyindexscout.co.uk/index.php/football-index-buzz-winners-history

Many thanks in advance :)