diff --git a/services/gerrit/default.nix b/services/gerrit/default.nix
index 7ba4fcd..44ca7ae 100644
--- a/services/gerrit/default.nix
+++ b/services/gerrit/default.nix
@@ -76,11 +76,12 @@ in
         database.poolLimit = "250";
         database.poolMaxIdle = 16;
         http.maxThreads = 100;
-        # core.packedGitLimit = "4g";
-        # core.packedGitWindowSize = "16k";
-        # core.packedGitOpenFiles = "4096";
+        core.packedGitLimit = "4g";
+        core.packedGitWindowSize = "16k";
+        core.packedGitOpenFiles = "4096";
         receive.timeout = "4min";
-        # pack.threads = "8";
+        transfer.timeout = "4min";
+        pack.threads = "8";
         log.jsonLogging = true;
         log.textLogging = false;
         sshd.advertisedAddress = "cl.forkos.org:29418";
diff --git a/services/gerrit/www.nix b/services/gerrit/www.nix
index 9976774..8ad815c 100644
--- a/services/gerrit/www.nix
+++ b/services/gerrit/www.nix
@@ -11,6 +11,7 @@ in
         appendHttpConfig = ''
           add_header Permissions-Policy "interest-cohort=()";
         '';
+        recommendedProxySettings = false;
       };
       services.nginx.virtualHosts.gerrit = {
         serverName = builtins.head cfg.domains;
@@ -24,6 +25,8 @@ in
             proxy_set_header  X-Forwarded-For $remote_addr;
             # The :443 suffix is a workaround for https://b.tvl.fyi/issues/88.
             proxy_set_header  Host $host:443;
+            # Gerrit can throw a lot of data.
+            proxy_buffering off;
           }
 
           location = /robots.txt {