diff --git a/flow/workflows/cdc_flow.go b/flow/workflows/cdc_flow.go
index 16d5c371f3..c9825d4e80 100644
--- a/flow/workflows/cdc_flow.go
+++ b/flow/workflows/cdc_flow.go
@@ -141,7 +141,7 @@ func GetChildWorkflowID(
 type CDCFlowWorkflowResult = CDCFlowWorkflowState
 
 const (
-	maxSyncsPerCdcFlow = 60
+	maxSyncsPerCdcFlow = 32
 )
 
 func (w *CDCFlowWorkflowExecution) processCDCFlowConfigUpdate(ctx workflow.Context,
@@ -205,6 +205,10 @@ func (w *CDCFlowWorkflowExecution) processCDCFlowConfigUpdate(ctx workflow.Conte
 
 		state.SyncFlowOptions.TableMappings = append(state.SyncFlowOptions.TableMappings, flowConfigUpdate.AdditionalTables...)
 
+		if w.syncFlowFuture != nil {
+			_ = model.SyncOptionsSignal.SignalChildWorkflow(ctx, w.syncFlowFuture, state.SyncFlowOptions).Get(ctx, nil)
+		}
+
 		// finished processing, wipe it
 		state.FlowConfigUpdate = nil
 	}
@@ -300,7 +304,7 @@ func CDCFlowWorkflow(
 
 		for state.ActiveSignal == model.PauseSignal {
 			// only place we block on receive, so signal processing is immediate
-			for state.ActiveSignal == model.PauseSignal && ctx.Err() == nil {
+			for state.ActiveSignal == model.PauseSignal && state.FlowConfigUpdate == nil && ctx.Err() == nil {
 				w.logger.Info("mirror has been paused", slog.Any("duration", time.Since(startTime)))
 				selector.Select(ctx)
 			}
@@ -595,13 +599,21 @@ func CDCFlowWorkflow(
 		}
 
 		if restart {
+			if state.ActiveSignal == model.PauseSignal {
+				finished = true
+			}
+
 			for ctx.Err() == nil && (!finished || mainLoopSelector.HasPending()) {
 				mainLoopSelector.Select(ctx)
 			}
+
 			if err := ctx.Err(); err != nil {
 				w.logger.Info("mirror canceled", slog.Any("error", err))
-				return state, err
+				return nil, err
 			}
+
+			// important to control the size of inputs.
+			state.TruncateProgress(w.logger)
 			return state, workflow.NewContinueAsNewError(ctx, CDCFlowWorkflow, cfg, state)
 		}
 	}
diff --git a/flow/workflows/sync_flow.go b/flow/workflows/sync_flow.go
index 6d2c9def50..2ce225f260 100644
--- a/flow/workflows/sync_flow.go
+++ b/flow/workflows/sync_flow.go
@@ -14,7 +14,7 @@ import (
 )
 
 const (
-	maxSyncsPerSyncFlow = 72
+	maxSyncsPerSyncFlow = 64
 )
 
 func SyncFlowWorkflow(