Dapper data retrieval very slow from SQL server

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ASP.NET-Core

I am facing a problem while fetching sql server data using ASP.NET Core with dapper method.
I have a view with 3 varbinary(max) fields with 800 records, which executes under 2 seconds in SSMS.
But in .net core it is taking around 1 minute to return the result.

Can anyone help me to solve the issue?
Which is the fastest dapper method to fetch varbinary(max) data with same time as in SSMS.

What I have tried:

Please see Dapper data access methods i tried below.
Method1:
var data = await connection.QueryMultipleAsync(command);
Method 2:
var data = await connection.QueryAsync(command);