I am reading data using LINQ query which has millions of data and ends up in timeout . And how we can optimize the query to increase its performance.

var details  = await (from m in context.student
                                 .Include(m => m.studentdetails)
                                 where m.studentnumber == studentnumber
                                 && m.location == location
                                 && m.class == class                                 
                                 select m).ToListAsync();