diff --git a/src/Simulator.cpp b/src/Simulator.cpp
index ace33e9..7c790d8 100644
--- a/src/Simulator.cpp
+++ b/src/Simulator.cpp
@@ -16,7 +16,9 @@ class Vector3;
 std::clock_t startTime = std::clock();
 
 // Sets the constant
-const float sol = 10.0; // Speed of light *should* be 1, but 10.0 make it compatible with old settings so I don't need to change the text in the creator
+const float sol = 3.5; // Speed of light *should* be 1, but 3.5 make it compatible with old settings so I don't need to change the text in the creator
+const float invsolsqr = 1.0f/(sol*sol);
+
 
 // Defines a pointer to the screen size (needs to be accessible everywhere, but the Vector3 class is still undefined!)
 Vector3 *screenSize;
@@ -239,7 +241,8 @@ struct Star
     void tick(float dt, bool relativistic) {
 
         if (true){
-            acceleration = acceleration * (sol - sqrt(velocity.SqrMagnitude()))/sol;
+            // Lorentz scaling
+            acceleration = acceleration * sqrt(std::max(0.0f, (1 - velocity.SqrMagnitude()*invsolsqr)));
         }