Performance Improvements (#173)

* improve performance with new render settings

- fix letterboxing losing camera references

* fin in missing params?

needs testing

* finish default param check

* scale jump animation of fan club spectators

* fix missing references in a karate man method

* more liberal use of Double in conductor

beatkeeping is now absolute instead of being additive

* optimize Conductor more

reduce caching from constantly sorting tempo changes despite game manager doing it for us
moved metronome logic to LateUpdate

Assets/Scripts/Games/KarateMan/KarateMan.cs

@@ -945,6 +945,9 @@ namespace HeavenStudio.Games
 
         void UpdateFilterColour(Color bgColor, Color filterColor)
         {
+            bgGradientRenderer = BGGradient.GetComponent<SpriteRenderer>();
+            bgBloodRenderer = BGBlood.GetComponent<SpriteRenderer>();
+            bgRadialRenderer = BGRadial.GetComponent<SpriteRenderer>();
             Color col;
             if (textureFilterType == (int) ShadowType.Tinted)
                 col = Color.LerpUnclamped(bgColor, ShadowBlendColor, 0.45f);