use best scale quality

client/CMT.cpp

@@ -1108,6 +1108,7 @@ static bool recreateWindow(int w, int h, int bpp, bool fullscreen, int displayIn
 #ifdef VCMI_IOS
         SDL_SetHint(SDL_HINT_IOS_HIDE_HOME_INDICATOR, "1");
         SDL_SetHint(SDL_HINT_RETURN_KEY_HIDES_IME, "1");
+		SDL_SetHint(SDL_HINT_RENDER_SCALE_QUALITY, "best");
 
         Uint32 windowFlags = SDL_WINDOW_BORDERLESS | SDL_WINDOW_ALLOW_HIGHDPI;
         if(!createWindow(windowFlags | SDL_WINDOW_METAL))