Primavera Application working very slow

Hi,

we are using SQL Standard database with windows 7, 64bit server.

We bought 10 no standalone license of "Primavera P6 Professional 8.2" . At the start the application was working at good condition, but now in our Project we have total

Activities              21000 no
Relationship       66000 no
WBS                       20000 no
WBS code, Activity Code & so many Recourse code

Now the Application working very slow.

After updating any activity or any data if I will go for schedule, its taking more than 5 mints sometime 15 mints too.

If I add any new "Resource" and Indent/ Out dent it. Its taking same time 5 to 15 mints.

We have done so many work around but we could not able to solve the problem.