diff --git a/experimental/AcousticSolver.cpp b/experimental/AcousticSolver.cpp
index e155bd3957e6443570c3acf700a6c1d8e6690d46..1fa8b763ee1223fb6ef56ffa2aadb06d5e7d35e8 100644
--- a/experimental/AcousticSolver.cpp
+++ b/experimental/AcousticSolver.cpp
@@ -205,13 +205,7 @@ void AcousticSolver::computeExplicitFluxes(const Kokkos::View<const double*>& xr
 						   node_cells, node_cell_local_node, node_nb_cells);
 
   ur  = computeUr(Ar, br);
-#warning understand why this call diminishes performances
   Fjr = computeFjr(Ajr, ur, Cjr, uj, pj, cell_nodes);
-  // Kokkos::parallel_for(m_nj, KOKKOS_LAMBDA(const int& j) {
-  //     for (int r=0; r<2; ++r) {
-  // 	Fjr(j,r) = Ajr(j,r)*(uj(j)-ur(cell_nodes(j,r)))+Cjr(j,r)*pj(j);
-  //     }
-  //   });
 }
 
 AcousticSolver::AcousticSolver(const long int& nj)
@@ -360,8 +354,6 @@ AcousticSolver::AcousticSolver(const long int& nj)
 	ej[j] = Ej[j] - 0.5 * uj[j]*uj[j];
       });
 
-    // Kokkos::View<double*> xr_new("new_xr", m_nr);
-
     Kokkos::parallel_for(m_nr, KOKKOS_LAMBDA(const int& r){
 	xr[r] += dt*ur[r];
       });