diff --git a/code/processes/loading-process/src/main/java/nu/marginalia/loading/domains/DomainIdRegistry.java b/code/processes/loading-process/src/main/java/nu/marginalia/loading/domains/DomainIdRegistry.java
index 2ab6ba46..bccc3ed3 100644
--- a/code/processes/loading-process/src/main/java/nu/marginalia/loading/domains/DomainIdRegistry.java
+++ b/code/processes/loading-process/src/main/java/nu/marginalia/loading/domains/DomainIdRegistry.java
@@ -5,7 +5,7 @@ import java.util.Map;
 
 /** Maps domain names to domain ids */
 public class DomainIdRegistry {
-    private final Map<String, Integer> domainIds = new HashMap<>();
+    private final Map<String, Integer> domainIds = new HashMap<>(10_000);
 
     public int getDomainId(String domainName) {
         Integer id = domainIds.get(domainName.toLowerCase());
diff --git a/code/processes/loading-process/src/main/java/nu/marginalia/loading/domains/DomainLoaderService.java b/code/processes/loading-process/src/main/java/nu/marginalia/loading/domains/DomainLoaderService.java
index fa34e07c..6739f8e7 100644
--- a/code/processes/loading-process/src/main/java/nu/marginalia/loading/domains/DomainLoaderService.java
+++ b/code/processes/loading-process/src/main/java/nu/marginalia/loading/domains/DomainLoaderService.java
@@ -42,12 +42,12 @@ public class DomainLoaderService {
     public DomainIdRegistry getOrCreateDomainIds(LoaderInputData inputData)
             throws IOException, SQLException
     {
-        Set<String> domainNamesAll = new HashSet<>();
+        Set<String> domainNamesAll = new HashSet<>(100_000);
         DomainIdRegistry ret = new DomainIdRegistry();
 
         try (var conn = dataSource.getConnection();
              var selectStmt = conn.prepareStatement("""
-                     SELECT ID, DOMAIN_NAME FROM EC_DOMAIN WHERE DOMAIN_NAME=?
+                     SELECT ID FROM EC_DOMAIN WHERE DOMAIN_NAME=?
                      """)
         ) {
 
@@ -70,6 +70,7 @@ public class DomainLoaderService {
                 }
             }
 
+            selectStmt.setFetchSize(1000);
             for (var domain : domainNamesAll) {
                 selectStmt.setString(1, domain);
                 var rs = selectStmt.executeQuery();
@@ -133,7 +134,7 @@ public class DomainLoaderService {
         return true;
     }
 
-    private class DomainInserter implements AutoCloseable {
+    private static class DomainInserter implements AutoCloseable {
         private final PreparedStatement statement;
         private final int nodeAffinity;