EF7: query (with JSON and CLOB) is much slower with directmode=true than without directmode

EF7: query (with JSON and CLOB) is much slower with directmode=true than without directmode

When querying an oracle view that has a CLOB which stores JSON using a connectstring with direct=true is much slower then without direct=true.

<PackageReference Include="Devart.Data.Oracle.EFCore" Version="10.1.134.7" />
<PackageReference Include="Microsoft.EntityFrameworkCore" Version="7.0.5" />

This is the code: 

var ctx = new AppDbContext();

using (var command = ctx.Database.GetOracleConnection().CreateCommand())
{
   command.InitialLobFetchSize = -1;
    command.CommandText = $"SELECT * FROM MYORAVIEW a WHERE JSON_EXISTS(FIELD1,'$.CODE?(@==\"MYTEXT\")')";
    command.CommandType = CommandType.Text;
    ctx.Database.OpenConnection(); 

    using (var result = command.ExecuteReader())
    {
        var entities = new List<string>();
        Stopwatch sw = new Stopwatch();
        sw.Start();
        while (result.Read())
        {
            entities.Add(result.GetString(0));
        }
        sw.Stop();

        Console.WriteLine(sw.Elapsed);

    }
    ctx.Database.CloseConnection();
    Console.ReadLine();
}

public partial class AppDbContext : DbContext
    {
        public AppDbContext()
        {
        }

        public AppDbContext(DbContextOptions<AppDbContext> options)
            : base(options)
        {
        }

        public Task<IDbContextTransaction> BeginTransactionAsync(CancellationToken ct) { return Database.BeginTransactionAsync(ct); }

        protected override void OnConfiguring(DbContextOptionsBuilder optionsBuilder)
        {
            if (!optionsBuilder.IsConfigured)
            {
               optionsBuilder.UseOracle("OMITTED CONNECTIONSTRING");
            }
        }

        protected override void OnModelCreating(ModelBuilder modelBuilder)
        {
            OnModelCreatingPartial(modelBuilder);
        }

        partial void OnModelCreatingPartial(ModelBuilder modelBuilder);
    }