[+] Option to disable some useless checks and delays to speedup the game boot process

AquaMai/AquaMai.csproj

@@ -266,6 +266,7 @@
     <Compile Include="Cheat\TicketUnlock.cs" />
     <Compile Include="Config.cs" />
     <Compile Include="Fix\FixCharaCrash.cs" />
+    <Compile Include="Performance\ImproveLoadSpeed.cs" />
     <Compile Include="Properties\AssemblyInfo.cs" />
     <Compile Include="Main.cs" />
     <Compile Include="UX\SinglePlayer.cs" />

AquaMai/AquaMai.toml

@@ -13,4 +13,8 @@ SkipWarningScreen=true
 # Single player: Show 1P only, at the center of the screen
 SinglePlayer=true
 # !!EXPERIMENTAL!! Skip from the card-scanning screen directly to music selection screen
-SkipToMusicSelection=false
+SkipToMusicSelection=false
+
+[Performance]
+# Disable some useless checks and delays to speedup the game boot process
+ImproveLoadSpeed=false

AquaMai/Config.cs

@@ -7,6 +7,7 @@ namespace AquaMai
     {
         public UXConfig UX { get; set; }
         public CheatConfig Cheat { get; set; }
+        public PerformanceConfig Performance { get; set; }
 
         public class CheatConfig
         {
@@ -19,5 +20,10 @@ namespace AquaMai
             public bool SinglePlayer { get; set; }
             public bool SkipToMusicSelection { get; set; }
         }
+        
+        public class PerformanceConfig
+        {
+            public bool ImproveLoadSpeed { get; set; }
+        }
     }
 }

AquaMai/Performance/ImproveLoadSpeed.cs

@@ -0,0 +1,57 @@
+using System.Diagnostics;
+using HarmonyLib;
+using MelonLoader;
+using Process;
+
+namespace AquaMai.Performance
+{
+    public class ImproveLoadSpeed
+    {
+        [HarmonyPrefix]
+        [HarmonyPatch(typeof(PowerOnProcess), "OnUpdate")]
+        public static bool PrePowerOnUpdate(PowerOnProcess __instance)
+        {
+            var traverse = Traverse.Create(__instance);
+            var state = traverse.Field("_state").GetValue<byte>();
+            switch (state)
+            {
+                case 3:
+                    traverse.Field("_state").SetValue((byte)4);
+                    break;
+                case 5:
+                    traverse.Field("_state").SetValue((byte)8);
+                    break;
+                case 9:
+                    traverse.Field("_state").SetValue((byte)10);
+                    break;
+            }
+
+            return true;
+        }
+        
+        [HarmonyPrefix]
+        [HarmonyPatch(typeof(StartupProcess), "OnUpdate")]
+        public static bool PreStartupUpdate(StartupProcess __instance)
+        {
+            var traverse = Traverse.Create(__instance);
+            var state = traverse.Field("_state").GetValue<byte>();
+            switch (state)
+            {
+                case 0:
+                case 1:
+                case 2:
+                    traverse.Field("_state").SetValue((byte)3);
+                    break;
+                case 4:
+                    traverse.Field("_state").SetValue((byte)5);
+                    break;
+                case 8:
+                    var timer = traverse.Field("timer").GetValue<Stopwatch>();
+                    Traverse.Create(timer).Field("elapsed").SetValue(2 * 10000000L);
+                    break;
+            }
+
+            return true;
+        }
+    }
+}