diff --git a/PWGEM/PhotonMeson/Tasks/photonResoTask.cxx b/PWGEM/PhotonMeson/Tasks/photonResoTask.cxx
index a7589d90316..1b462994dca 100644
--- a/PWGEM/PhotonMeson/Tasks/photonResoTask.cxx
+++ b/PWGEM/PhotonMeson/Tasks/photonResoTask.cxx
@@ -176,31 +176,6 @@ struct PhotonResoTask {
     Configurable<bool> cfgEnableQA{"cfgEnableQA", false, "flag to turn QA plots on/off"};
   } mesonConfig;
 
-  struct : ConfigurableGroup {
-    std::string prefix = "mixingConfig";
-    ConfigurableAxis cfgVtxBins{"cfgVtxBins", {VARIABLE_WIDTH, -10.0f, -8.f, -6.f, -4.f, -2.f, 0.f, 2.f, 4.f, 6.f, 8.f, 10.f}, "Mixing bins - z-vertex"};
-    ConfigurableAxis cfgCentBins{"cfgCentBins", {VARIABLE_WIDTH, 0.0f, 5.0f, 10.0f, 20.0f, 30.0f, 40.0f, 50.0f, 60.0f, 70.0f, 80.0f, 90.0f, 100.f}, "Mixing bins - centrality"};
-    ConfigurableAxis cfgEPBins{"cfgEPBins", {8, o2::constants::math::PIHalf, o2::constants::math::PIHalf}, "Mixing bins - event plane angle"};
-    ConfigurableAxis cfgOccupancyBins{"cfgOccupancyBins", {VARIABLE_WIDTH, 0, 100, 500, 1000, 2000}, "Mixing bins - occupancy"};
-    Configurable<int> cfgMixingDepth{"cfgMixingDepth", 2, "Mixing depth"};
-  } mixingConfig;
-
-  struct : ConfigurableGroup {
-    std::string prefix = "rotationConfig";
-    Configurable<bool> cfgDoRotation{"cfgDoRotation", false, "Flag to enable rotation background method."};
-    Configurable<int> cfgDownsampling{"cfgDownsampling", 1, "Calculate rotation background only for every <value> collision."};
-    Configurable<float> cfgRotAngle{"cfgRotAngle", std::move(const_cast<float&>(o2::constants::math::PIHalf)), "Angle used for the rotation method."};
-    Configurable<bool> cfgUseWeights{"cfgUseWeights", false, "Flag to enable weights for rotation background method."};
-  } rotationConfig;
-
-  struct : ConfigurableGroup {
-    std::string prefix = "correctionConfig";
-    Configurable<std::string> cfgSpresoPath{"cfgSpresoPath", "Users/m/mhemmer/EM/Flow/Resolution", "Path to SP resolution file"};
-    Configurable<int> cfgApplySPresolution{"cfgApplySPresolution", 0, "Apply resolution correction"};
-    Configurable<bool> doEMCalCalib{"doEMCalCalib", 0, "Produce output for EMCal calibration"};
-    Configurable<bool> cfgEnableNonLin{"cfgEnableNonLin", false, "flag to turn extra non linear energy calibration on/off"};
-  } correctionConfig;
-
   SliceCache cache;
 
   using EMCalPhotons = soa::Join<aod::EMCEMEventIds, aod::MinClusters, aod::EMEMCClusterMCLabels>;
@@ -224,10 +199,6 @@ struct PhotonResoTask {
   int mRunNumber{-1};
   float dBz{0.f};
 
-  // Usage when cfgEnableNonLin is enabled
-  std::unique_ptr<TF1> fEMCalCorrectionFactor; // ("fEMCalCorrectionFactor","(1 + [0]/x + [1]/x^2) / (1 + [2]/x)", 0.3, 100.);
-  float energyCorrectionFactor = 1.f;
-
   void defineEMEventCut()
   {
     fEMEventCut = EMPhotonEventCut("fEMEventCut", "fEMEventCut");
@@ -320,7 +291,7 @@ struct PhotonResoTask {
     const AxisSpec thnAxisPGen{thnConfigAxisPt, "#it{p}_{Gen} (GeV/#it{c})"};
     const AxisSpec thnAxisPRec{thnConfigAxisPt, "#it{p}_{Rec} (GeV/#it{c})"};
     const AxisSpec thnAxisPRelative{thnConfigAxisXRelative, "#it{p}_{Rec} - #it{p}_{Gen} / #it{p}_{Gen}"};
-    const AxisSpec thnAxisEGen{thnConfigAxisPt, "#it{E}_{Rec} (GeV)"};
+    const AxisSpec thnAxisEGen{thnConfigAxisPt, "#it{E}_{Gen} (GeV)"};
     const AxisSpec thnAxisERec{thnConfigAxisPt, "#it{E}_{Rec} (GeV)"};
     const AxisSpec thnAxisERelative{thnConfigAxisXRelative, "#it{E}_{Rec} - #it{E}_{Gen} / #it{E}_{Gen}"};
     const AxisSpec thnAxisInvMass{thnConfigAxisInvMass, "#it{M}_{#gamma#gamma} (GeV/#it{c}^{2})"};
@@ -375,9 +346,6 @@ struct PhotonResoTask {
     if (mesonConfig.cfgEnableQA.value) {
       registry.add("mesonQA/hInvMassPt", "Histo for inv pair mass vs pt", HistType::kTH2D, {thnAxisInvMass, thnAxisPtRec});
     }
-
-    fEMCalCorrectionFactor = std::make_unique<TF1>("fEMCalCorrectionFactor", "(1 + [0]/x + [1]/x^2) / (1 + [2]/x)", 0.3, 100.);
-    fEMCalCorrectionFactor->SetParameters(-5.33426e-01, 1.40144e-02, -5.24434e-01);
   }; // end init
 
   template <o2::soa::is_iterator TCollision>
@@ -571,15 +539,8 @@ struct PhotonResoTask {
           continue;
         }
 
-        if (correctionConfig.cfgEnableNonLin.value) {
-          energyCorrectionFactor = fEMCalCorrectionFactor->Eval(g1.e() > MinEnergy ? g1.e() : MinEnergy);
-        }
-        if (correctionConfig.cfgEnableNonLin.value) {
-          energyCorrectionFactor = fEMCalCorrectionFactor->Eval(g2.e() > MinEnergy ? g2.e() : MinEnergy);
-        }
-
-        ROOT::Math::PtEtaPhiMVector v1(energyCorrectionFactor * g1.pt(), g1.eta(), g1.phi(), 0.);
-        ROOT::Math::PtEtaPhiMVector v2(energyCorrectionFactor * g2.pt(), g2.eta(), g2.phi(), 0.);
+        ROOT::Math::PtEtaPhiMVector v1(g1.pt(), g1.eta(), g1.phi(), 0.);
+        ROOT::Math::PtEtaPhiMVector v2(g2.pt(), g2.eta(), g2.phi(), 0.);
         ROOT::Math::PtEtaPhiMVector vMeson = v1 + v2;
 
         float openingAngle = std::acos(v1.Vect().Dot(v2.Vect()) / (v1.P() * v2.P()));