diff --git a/src/config.h b/src/config.h
index d60584f3..fcc11e67 100644
--- a/src/config.h
+++ b/src/config.h
@@ -32,7 +32,7 @@
  * <Delay> = <USER_INTERP_RATIO> * <Tick interval>
  * E.g: At 1.5, the user thread will render 75ms back in time if the sim runs at 50tps
  */
-#define USER_INTERP_RATIO 1.5
+#define USER_INTERP_RATIO 1.2
 #define USER_INTERP_ENABLED 1
 
  /* 64^2 = 4096 bins */
diff --git a/src/user.c b/src/user.c
index c9b3afeb..6c29ba69 100644
--- a/src/user.c
+++ b/src/user.c
@@ -777,10 +777,9 @@ INTERNAL void user_update(void)
         G.ui_size = G.screen_size;
         G.ui_screen_offset = V2(0, 0);
     } else {
-
         /* Determine ui size by camera & window dimensions */
-        f32 aspect_ratio = 1.0;
-        {
+        f32 aspect_ratio = DEFAULT_CAMERA_WIDTH / DEFAULT_CAMERA_HEIGHT;
+        if (local_camera->valid) {
             struct xform quad_xf = xform_mul(sim_ent_get_xform(local_camera), local_camera->camera_quad_xform);
             struct v2 camera_size = xform_get_scale(quad_xf);
             if (!v2_is_zero(camera_size)) {