
Originally Posted by
Ajax
In addition to Orange's comments:
is there a lot of duplicate data? if so, normalise
are you using temp tables? - if so, put temp tables in another back end
are you over indexing? if so, reduce number of indexes to those required for criteria/relationships/sorting. Also remove indexes where the range of fields is very small (e.g. yes/no fields, day of week) since they will be ineffective
consider splitting your tables across several backends
If none of the above works for you, then your only way forward is to upgrade your backend to sql server (express is free) or similar