Time consumption at the time of posting bank receipt voucher records approx 5 lack

Dear Members,

I am working in E-Commerce Company (having bulk data) and using Nav 13R2, At the time of posting Bank receipt voucher having records approx 5 lack, We noticed Checking lines and checking balance completed very fast, but updating balance lines consumes a lot of time approx( please see attached screen shot 61k Records taken 3 hours 30 minutes).

please suggest.

Regards

Antim kumar

9718228752