Performance improvement

Hi There, In our application, I am using the code below to get the documents eSigned Automatically in the sandbox account. There are two documents that needs to be signed and each document is only 70-100kb in size, but the signing process takes about 7~8 seconds to complete the signing. This is something we are doing on post action of a page and this makes the next page load a lot slower. Is there anything that I can change in my code that can improve the performance? Or will the performance be automatically faster in production account?

            Stream file1 = new MemoryStream(Document1);
            EslClient eslClient = new EslClient(API_KEY, API_URL);

            PackageBuilder packageToBuild = PackageBuilder.NewPackageNamed("Test package");

            Signer signer1 = SignerBuilder.NewSignerWithEmail(Signer1Details.SignerDetails.ssSignerEmail)
                                                 .WithCustomId(Signer1Details.SignerDetails.ssSignerId)
                                                 .WithFirstName(Signer1Details.SignerDetails.ssFirstName)
                                                 .WithLastName(Signer1Details.SignerDetails.ssLastName)
                                                 .Build();

            

            DocumentBuilder document = DocumentBuilder.NewDocumentNamed(Document1Name)
                                                      .FromStream(file1, DocumentType.PDF)
                                                      .WithId(Doc1Id)
                                                      .WithSignature(SignatureBuilder.SignatureFor(Signer1Details.SignerDetails.ssSignerEmail)
                                                              .OnPage(PageToSign)
                                                              .AtPosition(SignatureXPosition, SignatureYPosition)
                                                              .WithField(FieldBuilder.SignatureDate()
                                                                       .OnPage(0)
                                                                       .AtPosition(SignatureXPosition, (SignatureYPosition + 50))));
            DocumentPackage packageToSend;
            PackageId packageId;
            if (ssTotalDocuments == 2)
            {
                Stream file2 = new MemoryStream(ssDocument2);

                Signer signer2 = SignerBuilder.NewSignerWithEmail(Signer2Details.SignerDetails.ssSignerEmail)
                                                 .WithCustomId(Signer2Details.SignerDetails.ssSignerId)
                                                 .WithFirstName(Signer2Details.SignerDetails.ssFirstName)
                                                 .WithLastName(Signer2Details.SignerDetails.ssLastName)
                                                 .Build();

                DocumentBuilder document2 = DocumentBuilder.NewDocumentNamed(Document2Name)
                                                           .FromStream(file2, DocumentType.PDF)
                                                           .WithId(Doc2Id)
                                                           .WithSignature(SignatureBuilder.SignatureFor(ssSigner2Details.ssSTSignerDetails.ssSignerEmail)
                                                                    .OnPage(PageToSign)
                                                                    .AtPosition(SignatureXPosition, SignatureYPosition)
                                                                    .WithField(FieldBuilder.SignatureDate()
                                                                              .OnPage(0)
                                                                              .AtPosition(SignatureXPosition, (SignatureYPosition + 50))));

                packageToSend = packageToBuild.WithSigner(signer1).WithSigner(signer2).WithDocument(document).WithDocument(document2).Build();
                packageId = eslClient.CreateAndSendPackage(packageToSend);
                eslClient.SignDocuments(packageId, signer1.Id);
                eslClient.SignDocuments(packageId, signer2.Id);
            }
            else
            {
                packageToSend = packageToBuild.WithSigner(signer1).WithDocument(document).Build();
                packageId = eslClient.CreateAndSendPackage(packageToSend);
                eslClient.SignDocuments(packageId, signer1.Id);
            }

            

            PackageId = packageId.ToString();