diff --git a/client/resource_group/controller/controller.go b/client/resource_group/controller/controller.go
index df560ac19f1..0323c6b0b33 100644
--- a/client/resource_group/controller/controller.go
+++ b/client/resource_group/controller/controller.go
@@ -282,29 +282,6 @@ func (c *ResourceGroupsController) Start(ctx context.Context) {
 
 		for {
 			select {
-			/* high priority */
-			case <-c.lowTokenNotifyChan:
-				c.executeOnAllGroups((*groupCostController).updateRunState)
-				c.executeOnAllGroups((*groupCostController).updateAvgRequestResourcePerSec)
-				if len(c.run.currentRequests) == 0 {
-					c.collectTokenBucketRequests(c.loopCtx, FromLowRU, lowToken /* select low tokens resource group */)
-				}
-				if c.run.inDegradedMode {
-					c.executeOnAllGroups((*groupCostController).applyDegradedMode)
-				}
-			case resp := <-c.tokenResponseChan:
-				if resp != nil {
-					c.executeOnAllGroups((*groupCostController).updateRunState)
-					c.handleTokenBucketResponse(resp)
-				}
-				c.run.currentRequests = nil
-			case gc := <-c.tokenBucketUpdateChan:
-				go gc.handleTokenBucketUpdateEvent(c.loopCtx)
-			case <-c.responseDeadlineCh:
-				c.run.inDegradedMode = true
-				c.executeOnAllGroups((*groupCostController).applyDegradedMode)
-				log.Warn("[resource group controller] enter degraded mode")
-
 			/* tickers */
 			case <-cleanupTicker.C:
 				c.cleanUpResourceGroup()
@@ -339,6 +316,25 @@ func (c *ResourceGroupsController) Start(ctx context.Context) {
 			case <-c.loopCtx.Done():
 				resourceGroupStatusGauge.Reset()
 				return
+			case <-c.responseDeadlineCh:
+				c.run.inDegradedMode = true
+				c.executeOnAllGroups((*groupCostController).applyDegradedMode)
+				log.Warn("[resource group controller] enter degraded mode")
+			case resp := <-c.tokenResponseChan:
+				if resp != nil {
+					c.executeOnAllGroups((*groupCostController).updateRunState)
+					c.handleTokenBucketResponse(resp)
+				}
+				c.run.currentRequests = nil
+			case <-c.lowTokenNotifyChan:
+				c.executeOnAllGroups((*groupCostController).updateRunState)
+				c.executeOnAllGroups((*groupCostController).updateAvgRequestResourcePerSec)
+				if len(c.run.currentRequests) == 0 {
+					c.collectTokenBucketRequests(c.loopCtx, FromLowRU, lowToken /* select low tokens resource group */)
+				}
+				if c.run.inDegradedMode {
+					c.executeOnAllGroups((*groupCostController).applyDegradedMode)
+				}
 			case resp, ok := <-watchMetaChannel:
 				failpoint.Inject("disableWatch", func() {
 					if c.ruConfig.isSingleGroupByKeyspace {
@@ -409,6 +405,8 @@ func (c *ResourceGroupsController) Start(ctx context.Context) {
 					}
 					log.Info("load resource controller config after config changed", zap.Reflect("config", config), zap.Reflect("ruConfig", c.ruConfig))
 				}
+			case gc := <-c.tokenBucketUpdateChan:
+				go gc.handleTokenBucketUpdateEvent(c.loopCtx)
 			}
 		}
 	}()