diff --git a/src/main/java/li/cil/oc2/common/block/entity/ComputerTileEntity.java b/src/main/java/li/cil/oc2/common/block/entity/ComputerTileEntity.java
index 4ceccc65..5d2cebf8 100644
--- a/src/main/java/li/cil/oc2/common/block/entity/ComputerTileEntity.java
+++ b/src/main/java/li/cil/oc2/common/block/entity/ComputerTileEntity.java
@@ -416,7 +416,7 @@ public final class ComputerTileEntity extends AbstractTileEntity implements ITic
         super.loadServer();
 
         busElement.initialize();
-        virtualMachine.rtc.setWorld(getWorld());
+        virtualMachine.rtcMinecraft.setWorld(getWorld());
     }
 
     @Override
@@ -565,8 +565,8 @@ public final class ComputerTileEntity extends AbstractTileEntity implements ITic
     }
 
     private static final class ComputerVirtualMachine extends VirtualMachine {
-        private static final int UART_INTERRUPT = 0x3;
-        private static final int VFS_INTERRUPT = 0x4;
+        private static final int UART_INTERRUPT = 0x4;
+        private static final int VFS_INTERRUPT = 0x5;
 
         @Serialized public UART16550A uart;
         @Serialized public VirtIOFileSystemDevice vfs;
diff --git a/src/main/java/li/cil/oc2/common/vm/VirtualMachine.java b/src/main/java/li/cil/oc2/common/vm/VirtualMachine.java
index 572490fd..f4358e07 100644
--- a/src/main/java/li/cil/oc2/common/vm/VirtualMachine.java
+++ b/src/main/java/li/cil/oc2/common/vm/VirtualMachine.java
@@ -8,21 +8,20 @@ import li.cil.oc2.api.bus.device.vm.VMContext;
 import li.cil.oc2.common.bus.RPCAdapter;
 import li.cil.sedna.api.device.InterruptController;
 import li.cil.sedna.device.rtc.GoldfishRTC;
+import li.cil.sedna.device.rtc.SystemTimeRealTimeCounter;
 import li.cil.sedna.device.virtio.VirtIOConsoleDevice;
 import li.cil.sedna.riscv.R5Board;
 
 public class VirtualMachine {
-    // We report a clock rate to the VM such that for the VM it looks as though
-    // passes as much faster as MC time passes faster than real time.
-    public static final int REPORTED_CPU_FREQUENCY = 700_000;
-    public static final int ACTUAL_CPU_FREQUENCY = REPORTED_CPU_FREQUENCY * 72;
+    public static final int CPU_FREQUENCY = 33_000_000;
 
-    public static final int RTC_INTERRUPT = 0x1;
-    public static final int RPC_INTERRUPT = 0x2;
+    public static final int RTC_HOST_INTERRUPT = 0x1;
+    public static final int RTC_MINECRAFT_INTERRUPT = 0x2;
+    public static final int RPC_INTERRUPT = 0x3;
 
     ///////////////////////////////////////////////////////////////////
 
-    public final MinecraftRealTimeCounter rtc = new MinecraftRealTimeCounter();
+    public final MinecraftRealTimeCounter rtcMinecraft = new MinecraftRealTimeCounter();
 
     ///////////////////////////////////////////////////////////////////
 
@@ -36,7 +35,7 @@ public class VirtualMachine {
     public VirtualMachine(final DeviceBusController busController) {
         board = new R5Board();
 
-        board.getCpu().setFrequency(REPORTED_CPU_FREQUENCY);
+        board.getCpu().setFrequency(CPU_FREQUENCY);
 
         vmAdapter = new VirtualMachineDeviceBusAdapter(board);
         final VMContext context = vmAdapter.getGlobalContext();
@@ -45,10 +44,15 @@ public class VirtualMachine {
         final InterruptAllocator interruptAllocator = context.getInterruptAllocator();
         final InterruptController interruptController = context.getInterruptController();
 
-        final GoldfishRTC rtc = new GoldfishRTC(this.rtc);
-        interruptAllocator.claimInterrupt(RTC_INTERRUPT).ifPresent(interrupt ->
-                rtc.getInterrupt().set(interrupt, interruptController));
-        memoryRangeAllocator.claimMemoryRange(rtc);
+        final GoldfishRTC rtcHost = new GoldfishRTC(SystemTimeRealTimeCounter.get());
+        interruptAllocator.claimInterrupt(RTC_HOST_INTERRUPT).ifPresent(interrupt ->
+                rtcHost.getInterrupt().set(interrupt, interruptController));
+        memoryRangeAllocator.claimMemoryRange(rtcHost);
+
+        final GoldfishRTC rtcMinecraft = new GoldfishRTC(this.rtcMinecraft);
+        interruptAllocator.claimInterrupt(RTC_MINECRAFT_INTERRUPT).ifPresent(interrupt ->
+                rtcMinecraft.getInterrupt().set(interrupt, interruptController));
+        memoryRangeAllocator.claimMemoryRange(rtcMinecraft);
 
         deviceBusSerialDevice = new VirtIOConsoleDevice(board.getMemoryMap());
         interruptAllocator.claimInterrupt(RPC_INTERRUPT).ifPresent(interrupt ->
diff --git a/src/main/java/li/cil/oc2/common/vm/VirtualMachineRunner.java b/src/main/java/li/cil/oc2/common/vm/VirtualMachineRunner.java
index 929801e5..94b2a836 100644
--- a/src/main/java/li/cil/oc2/common/vm/VirtualMachineRunner.java
+++ b/src/main/java/li/cil/oc2/common/vm/VirtualMachineRunner.java
@@ -98,7 +98,7 @@ public class VirtualMachineRunner implements Runnable {
 
     ///////////////////////////////////////////////////////////////////
 
-    private int getCyclesPerTick() {
-        return VirtualMachine.ACTUAL_CPU_FREQUENCY / TICKS_PER_SECOND;
+    private static int getCyclesPerTick() {
+        return VirtualMachine.CPU_FREQUENCY / TICKS_PER_SECOND;
     }
 }