Response speed of the ver11 become fast?

Hello all,

I manage some development team of Aras Innovator for my clients.

Some clients needs to become fast of response speed ver11 Sp8/15.

Actually, upload xls/csv file to Aras and searching are very slowly response, 5mins or more.

I'd already confirmed network speed, server spec, DB tuning, a lot of times.

But, Aras DB will rock and down about uploading file or searching.

Please, shared this and discuss or advice me.