diff --git a/forces.cpp b/forces.cpp
index 0e4b548..cd7507f 100644
--- a/forces.cpp
+++ b/forces.cpp
@@ -49,7 +49,7 @@ void compute_repulsive_effects_from_pedestrians(Pedestrian *pedestrians, Pedestr
     Vector2d e_b = pedestrians[i].e;
 
     // # 2 MULTs
-    double s_b = pedestrians[i].desired_v0 * delta_t;
+    double s_b = pedestrians[i].curr_vel.norm() * delta_t;
 
     // # 4 flops = 2 ADDs, 2 MULTs
     Vector2d r_ab2 = r_ab - (e_b * s_b);
diff --git a/forces.hpp b/forces.hpp
index 3d2bd4a..74498ae 100644
--- a/forces.hpp
+++ b/forces.hpp
@@ -21,7 +21,7 @@ const double cos_phi = cos(phi);
 
 const double delta_t = 2;
 
-const double dt = 0.01;
+const double dt = 0.001;
 
 // # Optional (forces.cpp: compute_repulsive_effects_from_pedestrians)
 // const double DISTANCE = 2.0;
diff --git a/main.cpp b/main.cpp
index 46031ed..9d6ef6a 100644
--- a/main.cpp
+++ b/main.cpp
@@ -67,7 +67,7 @@ int main(int argc, const char *argv[]) {
   int n_iter = atoi(argv[2]);
 
   // Logic to get/dump the simulation data
-  const int dump_interval = 5; // dump every 5 iterations -> 20 fps (since dt = 0.01)
+  const int dump_interval = 50; // dump every 5 iterations -> 20 fps (since dt = 0.01)
   const char *dump_path = (argc >= 4) ? argv[3] : nullptr;
 
   std::vector<std::tuple<int, int, double, double, int>> samples; // t, id, x, y, color