Try using a 16bit texture for better performance

Source/storm/storm_svid.cpp

@@ -285,7 +285,7 @@ bool SVidPlayBegin(const char *filename, int flags)
 	if (renderer != nullptr) {
 		int renderWidth = static_cast<int>(SVidWidth);
 		int renderHeight = static_cast<int>(SVidHeight);
-		texture = SDLWrap::CreateTexture(renderer, SDL_PIXELFORMAT_RGB888, SDL_TEXTUREACCESS_STREAMING, renderWidth, renderHeight);
+		texture = SDLWrap::CreateTexture(renderer, SDL_PIXELFORMAT_RGB565, SDL_TEXTUREACCESS_STREAMING, renderWidth, renderHeight);
 		if (SDL_RenderSetLogicalSize(renderer, renderWidth, renderHeight) <= -1) {
 			ErrSdl();
 		}
@@ -379,7 +379,7 @@ void SVidPlayEnd()
 
 #ifndef USE_SDL1
 	if (renderer != nullptr) {
-		texture = SDLWrap::CreateTexture(renderer, SDL_PIXELFORMAT_RGB888, SDL_TEXTUREACCESS_STREAMING, gnScreenWidth, gnScreenHeight);
+		texture = SDLWrap::CreateTexture(renderer, SDL_PIXELFORMAT_RGB565, SDL_TEXTUREACCESS_STREAMING, gnScreenWidth, gnScreenHeight);
 		if (renderer != nullptr && SDL_RenderSetLogicalSize(renderer, gnScreenWidth, gnScreenHeight) <= -1) {
 			ErrSdl();
 		}

Source/utils/display.cpp

@@ -361,7 +361,7 @@ void ReinitializeTexture()
 	auto quality = StrCat(static_cast<int>(*sgOptions.Graphics.scaleQuality));
 	SDL_SetHint(SDL_HINT_RENDER_SCALE_QUALITY, quality.c_str());
 
-	texture = SDLWrap::CreateTexture(renderer, SDL_PIXELFORMAT_RGB888, SDL_TEXTUREACCESS_STREAMING, gnScreenWidth, gnScreenHeight);
+	texture = SDLWrap::CreateTexture(renderer, SDL_PIXELFORMAT_RGB565, SDL_TEXTUREACCESS_STREAMING, gnScreenWidth, gnScreenHeight);
 }
 
 void ReinitializeIntegerScale()