diff --git a/apps/amm/src/AmmUiBackend.cpp b/apps/amm/src/AmmUiBackend.cpp
index 0800f7d..acb5396 100644
--- a/apps/amm/src/AmmUiBackend.cpp
+++ b/apps/amm/src/AmmUiBackend.cpp
@@ -322,20 +322,31 @@ ActiveNetworkSnapshot AmmUiBackend::networkSnapshot()
         snapshot.status = QStringLiteral("loading");
         return snapshot;
     }
-    snapshot.ammProgramId = ammProgramIdHex();
+    // Resolve the AMM deployment id ($AMM_PROGRAM_BIN) and configured token set
+    // ($TOKENS_CONFIG) ONCE and cache — they're fixed for the process lifetime.
+    // networkSnapshot() runs on the quote hot path and from inside runtime reply
+    // callbacks, and tokenList() makes remote base58 conversions; recomputing each
+    // call reenters the module connection and hangs the reply.
+    if (!m_networkResolved) {
+        m_ammProgramIdCache = ammProgramIdHex();
+        m_tokenIdsCache.clear();
+        // Configured token set = the TOKENS_CONFIG definition ids, the same source
+        // the Swap view's token picker uses (tokenList normalizes them to hex).
+        const QVariantList tokens = tokenList();
+        for (const QVariant& entry : tokens) {
+            const QString id = entry.toMap().value(QStringLiteral("definitionId")).toString();
+            if (!id.isEmpty())
+                m_tokenIdsCache.append(id);
+        }
+        m_networkResolved = true;
+    }
+    snapshot.ammProgramId = m_ammProgramIdCache;
     // Bind a quote to this AMM deployment: the program id changes per deployment,
     // so it doubles as the network fingerprint (a quote can't be replayed against
     // a different program). Empty when AMM_PROGRAM_BIN is unset — status gates it.
-    snapshot.fingerprint = snapshot.ammProgramId;
-    // Configured token set = the TOKENS_CONFIG definition ids, the same source
-    // the Swap view's token picker uses (tokenList normalizes them to hex).
-    const QVariantList tokens = tokenList();
-    for (const QVariant& entry : tokens) {
-        const QString id = entry.toMap().value(QStringLiteral("definitionId")).toString();
-        if (!id.isEmpty())
-            snapshot.tokenIds.append(id);
-    }
-    snapshot.status = snapshot.ammProgramId.isEmpty()
+    snapshot.fingerprint = m_ammProgramIdCache;
+    snapshot.tokenIds = m_tokenIdsCache;
+    snapshot.status = m_ammProgramIdCache.isEmpty()
         ? QStringLiteral("config_missing")
         : QStringLiteral("ready");
     return snapshot;
diff --git a/apps/amm/src/AmmUiBackend.h b/apps/amm/src/AmmUiBackend.h
index a95cff5..854a105 100644
--- a/apps/amm/src/AmmUiBackend.h
+++ b/apps/amm/src/AmmUiBackend.h
@@ -5,6 +5,7 @@
 
 #include <QObject>
 #include <QString>
+#include <QStringList>
 #include <QVariant>
 #include <QVariantList>
 #include <QVariantMap>
@@ -101,6 +102,14 @@ private:
     std::unique_ptr<NewPositionRuntime> m_newPosition;
 
     QVariantMap m_newPositionHints;
+
+    // Network context is derived from $AMM_PROGRAM_BIN + $TOKENS_CONFIG, which are
+    // fixed for the process lifetime — resolve them once and cache. networkSnapshot()
+    // runs on the hot path (every quote) and from inside runtime callbacks, and
+    // tokenList() makes remote base58 conversions, so it must not recompute each call.
+    bool m_networkResolved = false;
+    QString m_ammProgramIdCache;
+    QStringList m_tokenIdsCache;
 };
 
 #endif // AMM_UI_BACKEND_H