Don't get rid of null curves each frame, instead do it once for SVG mobjects.

manimlib/mobject/svg/svg_mobject.py

@@ -329,7 +329,7 @@ class VMobjectFromSVGPathstring(VMobject):
 
     def __init__(self, path_string, **kwargs):
         self.path_string = path_string
-        VMobject.__init__(self, **kwargs)
+        super().__init__(**kwargs)
 
     def init_points(self):
         # TODO, move this caching operation
@@ -355,10 +355,10 @@ class VMobjectFromSVGPathstring(VMobject):
                 self.subdivide_sharp_curves()
             # SVG treats y-coordinate differently
             self.stretch(-1, 1, about_point=ORIGIN)
+            # Get rid of any null curves
+            self.points = self.get_points_without_null_curves()
             # Save to a file for future use
             np.save(filepath, self.points)
-        # Faster rendering
-        self.lock_triangulation()
 
     def get_commands_and_coord_strings(self):
         all_commands = list(self.get_command_to_function_map().keys())

manimlib/mobject/types/vectorized_mobject.py

@@ -608,8 +608,6 @@ class VMobject(Mobject):
 
     def get_points_without_null_curves(self, atol=1e-9):
         nppc = self.n_points_per_curve
-        if len(self.points) <= nppc + 1:
-            return self.points
         distinct_curves = reduce(op.or_, [
             (abs(self.points[i::nppc] - self.points[0::nppc]) > atol).any(1)
             for i in range(1, nppc)
@@ -912,7 +910,7 @@ class VMobject(Mobject):
         if len(stroke_width) > 1:
             stroke_width = self.stretched_style_array_matching_points(stroke_width)
 
-        points = self.get_points_without_null_curves()
+        points = self.points
         nppc = self.n_points_per_curve
 
         data = self.get_blank_shader_data_array(len(points), "stroke_data")