Load Data Fast

Hi, 
I have a table in database which is contains more than 8000+ Rows and 8 columns 
So when i Retrieve it into my asp.net core project it will take almost 40 seconds to load into View. 


but this same table load full  in less than in 4 seconds in classic asp.net (aspx) page. 

How do i make it fast loading ? 

this is my query : 
_context.Jobplan.ToList()

in classic aspx 
select * from Jobplan