diff --git a/tesseract/genconf/env.go b/tesseract/genconf/env.go
index 3f39622..ca061a4 100644
--- a/tesseract/genconf/env.go
+++ b/tesseract/genconf/env.go
@@ -35,10 +35,11 @@ func generateEnv(yamlFile string, wantDiff bool, allowWrite bool, useColor bool)
 			fmt.Sprintf("--origin=%s", logEntry.Origin),
 			fmt.Sprintf("--storage_dir=%s", logEntry.LocalDirectory),
 			fmt.Sprintf("--roots_pem_file=%s", rootsPemPath),
-			"--batch_max_size=512",
-			"--batch_max_age=500ms",
+			"--roots_remote_fetch_interval=22h",
+			"--batch_max_size=2048",
+			"--batch_max_age=2000ms",
 			"--pushback_max_outstanding=4096",
-			"--pushback_max_dedupe_in_flight=250",
+			"--rate_limit_dedup=500",
 		}
 
 		// Add http_endpoint if Listen is specified