diff --git a/src/processor/mod.rs b/src/processor/mod.rs
index 5c0a2f7..bf5c8b8 100644
--- a/src/processor/mod.rs
+++ b/src/processor/mod.rs
@@ -40,10 +40,6 @@ pub struct Cpu {
     cycle_start: Instant,
 }
 
-// Hz
-const CLOCK_SPEED: usize = 4194304;
-const SPEEDUP: f64 = 1.;
-
 impl Cpu {
     pub fn new(
         mut memory: Memory,
diff --git a/src/processor/timer.rs b/src/processor/timer.rs
index 4d641eb..b5e83aa 100644
--- a/src/processor/timer.rs
+++ b/src/processor/timer.rs
@@ -1,7 +1,7 @@
 use std::time::Duration;
 
 use crate::{
-    processor::{Cpu, CLOCK_SPEED, SPEEDUP},
+    processor::Cpu,
     util::{get_bit, set_bit},
 };
 
@@ -19,6 +19,8 @@ impl Timers {
     }
 }
 
+// Hz
+const CLOCK_SPEED: usize = 4194304;
 // this will need to change when cgb mode is implemented
 // as it uses bit 5 in double speed mode
 const AUDIO_BIT: u8 = 4;
@@ -68,7 +70,7 @@ impl Cpu {
     pub(super) fn sleep(&mut self, machine_cycles: u8) {
         let secs = ((machine_cycles as f64) * 4.) / CLOCK_SPEED as f64;
         if let Some(remaining) =
-            Duration::from_secs_f64(secs / SPEEDUP).checked_sub(self.cycle_start.elapsed())
+            Duration::from_secs_f64(secs).checked_sub(self.cycle_start.elapsed())
         {
             spin_sleep::sleep(remaining);
         }