diff --git a/rehlds/engine/decals.cpp b/rehlds/engine/decals.cpp
index 7f83f74..d5ee917 100644
--- a/rehlds/engine/decals.cpp
+++ b/rehlds/engine/decals.cpp
@@ -77,7 +77,7 @@ void Draw_CacheWadInitFromFile(FileHandle_t hFile, int len, char *name, int cach
 	wadinfo_t header;
 
 	FS_Read(&header, sizeof(wadinfo_t), 1, hFile);
-	if (Q_strncmp(header.identification, "WAD3", 4))
+	if (*(uint32 *)header.identification != MAKEID('W', 'A', 'D', '3'))
 		Sys_Error("Wad file %s doesn't have WAD3 id\n", name);
 	
 	wad->lumps = (lumpinfo_s *)Mem_Malloc(len - header.infotableofs);
@@ -115,7 +115,7 @@ qboolean Draw_CustomCacheWadInit(int cacheMax, cachewad_t *wad, void *raw, int n
 	lumpinfo_t *lump_p;
 	wadinfo_t header;
 	header = *(wadinfo_t *)raw;
-	if (Q_strncmp(header.identification, "WAD3", 4))
+	if (*(uint32 *)header.identification != MAKEID('W', 'A', 'D', '3'))
 	{
 		Con_Printf("Custom file doesn't have WAD3 id\n");
 		return FALSE;
diff --git a/rehlds/engine/host_cmd.cpp b/rehlds/engine/host_cmd.cpp
index 3058c8f..bb5b1aa 100644
--- a/rehlds/engine/host_cmd.cpp
+++ b/rehlds/engine/host_cmd.cpp
@@ -428,7 +428,7 @@ void Host_UpdateStats(void)
 			lastcputicks = cputicks;
 
 		if (lastrunticks)
-			cpuPercent = (cputicks - lastcputicks) / (runticks - lastrunticks);
+			cpuPercent = (double)(cputicks - lastcputicks) / (double)(runticks - lastrunticks);
 		else
 			lastrunticks = runticks;
 
@@ -440,7 +440,7 @@ void Host_UpdateStats(void)
 		}
 		if (cpuPercent > 0.999)
 			cpuPercent = 0.999;
-		if (cpuPercent < 0.1)
+		else if (cpuPercent < 0.0)
 			cpuPercent = 0.0;
 		last = Sys_FloatTime();
 	}
diff --git a/rehlds/engine/net_chan.cpp b/rehlds/engine/net_chan.cpp
index 78a6b7e..91abd9d 100644
--- a/rehlds/engine/net_chan.cpp
+++ b/rehlds/engine/net_chan.cpp
@@ -1007,7 +1007,7 @@ void Netchan_CreateFragments_(qboolean server, netchan_t *chan, sizebuf_t *msg)
 	}
 
 	// Compress if not done already
-	if (msg->data[0] != 'B' || msg->data[1] != 'Z' || msg->data[2] != '2' || msg->data[3] != 0)
+	if (*(uint32 *)msg->data != MAKEID('B', 'Z', '2', '\0'))
 	{
 		unsigned char compressed[65536];
 		char hdr[4] = "BZ2";
@@ -1383,7 +1383,7 @@ qboolean Netchan_CopyNormalFragments(netchan_t *chan)
 		p = n;
 	}
 
-	if (net_message.data[0] == 'B' && net_message.data[1] == 'Z' && net_message.data[2] == '2' && net_message.data[3] == 0)
+	if (*(uint32 *)net_message.data == MAKEID('B', 'Z', '2', '\0'))
 	{
 		char uncompressed[65536];
 		unsigned int uncompressedSize = 65536;
diff --git a/rehlds/engine/wad.cpp b/rehlds/engine/wad.cpp
index 4d22ec4..0728adb 100644
--- a/rehlds/engine/wad.cpp
+++ b/rehlds/engine/wad.cpp
@@ -79,11 +79,8 @@ int W_LoadWadFile(char *filename)
 	Q_strncpy(wad->wadname, filename, sizeof(wad->wadname) - 1);
 	wadinfo_t *header = (wadinfo_t *)wad->wad_base;
 	wad->wadname[sizeof(wad->wadname) - 1] = 0;
-	wad->loaded = 1;
-	if (header->identification[0] != 'W'
-		|| header->identification[1] != 'A'
-		|| header->identification[2] != 'D'
-		|| header->identification[3] != '3')
+	wad->loaded = TRUE;
+	if (*(uint32 *)header->identification != MAKEID('W', 'A', 'D', '3'))
 		Sys_Error("Wad file %s doesn't have WAD3 id\n", filename);
 	wad->wad_numlumps = LittleLong(header->numlumps);