diff --git a/EdkCompatibilityPkg/Foundation/Library/EdkIIGlueLib/Library/DxePerformanceLib/PerformanceLib.c b/EdkCompatibilityPkg/Foundation/Library/EdkIIGlueLib/Library/DxePerformanceLib/PerformanceLib.c
index 5949025d2b..c6b0b15c4e 100644
--- a/EdkCompatibilityPkg/Foundation/Library/EdkIIGlueLib/Library/DxePerformanceLib/PerformanceLib.c
+++ b/EdkCompatibilityPkg/Foundation/Library/EdkIIGlueLib/Library/DxePerformanceLib/PerformanceLib.c
@@ -604,12 +604,10 @@ Returns:
 
 --*/
 {
-  EFI_PERFORMANCE_INSTANCE  *PerfInstance;
   EFI_PERF_DATA_LIST        *Node;
   UINT64                    TimerValue;
 
   TimerValue    = 0;
-  PerfInstance  = EFI_PERFORMANCE_FROM_THIS (This);
 
   Node          = GetDataNode (Handle, Token, Host, NULL, NULL);
   if (!Node) {
@@ -662,11 +660,8 @@ Returns:
 
 --*/
 {
-  EFI_PERFORMANCE_INSTANCE  *PerfInstance;
   EFI_PERF_DATA_LIST        *Node;
 
-  PerfInstance  = EFI_PERFORMANCE_FROM_THIS (This);
-
   Node          = GetDataNode (Handle, Token, Host, NULL, PrevGauge);
   if (Node != NULL) {
     return &(Node->GaugeData);