fix inconsistent powers for performance, attempt to decrease speed skill multiplier to compensate

src/osu_2019/pp.rs

@@ -271,14 +271,7 @@ impl<'m> OsuPP<'m> {
             }
         }
 
-        let nodt_bonus = match !self.mods.change_speed() {
-            true => 1.02,
-            false => 1.0,
-        };
-
-        let mut pp = (aim_value.powf(1.185 * nodt_bonus)
-            + speed_value.powf(0.83 * acc_depression)
-            + acc_value.powf(1.14 * nodt_bonus))
+        let mut pp = (aim_value.powf(1.1) + speed_value.powf(1.1) + acc_value.powf(1.1))
         .powf(1.0 / 1.1)
             * multiplier;
 

src/osu_2019/skill.rs

@@ -2,7 +2,7 @@ use super::{DifficultyObject, SkillKind};
 
 use std::cmp::Ordering;
 
-const SPEED_SKILL_MULTIPLIER: f32 = 1400.0;
+const SPEED_SKILL_MULTIPLIER: f32 = 1200.0;
 const SPEED_STRAIN_DECAY_BASE: f32 = 0.3;
 
 const AIM_SKILL_MULTIPLIER: f32 = 26.25;