If customizations are done to the aging report, then I’ll suggest that you try to run the unmodified standard report, and if this report is not also very slow, then you contact the developer who created the customized report.
Also if no maintenance is done on you SQL Server, then you should have it looked at also. A SQL Server is not something you just install and leave “AS-IS”, but something which needs to be maintained on a weekly basis. There are lots of posts here on DUG explaining the different jobs you should schedule on your server to get optimal performance.