Does Connection Pooling makes Java Swing Application works faster for remote MySQL database

问题

I have Created an Java Swing Application with MySQL as the database, Now i am hosting my MySQL database online and Swing Application will be stored locally, Now in order to experiment i have hosted my database i.e MySQL database on https://www.freemysqlhosting.net/ account as it allows free hosting for certain period, Also Connection is successfull and works but the application works too slow suppose if i have to search any entry from the swing aplication from the oline hosted database it works too slow,it is happening like i have to press any key or button and has to wait for the processing of the transaction. Does connection pooling technique will solve the performance issues, If yes which is best one and if not what can i do to solve this. Please Help

Below is the code which i have written to make database transactions and i am doing this everytime i make a database access

public  ArrayList<ChargeSheet> readByAllCompanyInfo(String cityname)
{
ArrayList<ChargeSheet> list = new ArrayList<ChargeSheet>();
con=db.getConnection();
try{
    pst = con.prepareStatement("select * from tblcompanyinformation where companyname = ?");
    pst.setString(1,cityname);
    rs = pst.executeQuery();
    while(rs.next()){
        ChargeSheet clientInformation=new ChargeSheet();
        clientInformation.setRecieptno(rs.getInt(2));
        clientInformation.setPresentdate(rs.getString(3));
        clientInformation.setCompanyname(rs.getString(4));
        clientInformation.setPhone(rs.getString(5));
        list.add(clientInformation);   
    }
}
catch(SQLException ex){
    setLastError(ex.getMessage());
}
finally{
    db.closeConnection();
}
return list;   
}