fs-use-launcher takes a long time before starting up a whdload game

Hi, I have setup Launchbox to use the portable version of fs-uae for my Amiga games, through whdload (fs-uae arcade shows only a black screen when launching games, so not an alternative for me).

This is the complete launch string:
fs-uae-launcher.exe --joystick-port-0-mode=joystick --joystick-port-1-mode=joystick "whdload_game.zip"

I have 2 problems with this:
1. joystick port mode, is ignored, I still have to set the joystick manually in the UI, but this is a minor problem

2. the "Starting up FS-UAE" dialog comes up, a couple quick text lines appear, then it stays there for about 1 or 2 minutes. Finally the game loading proceeds. It's like it's waiting for something. Rarely it starts up immediately, so the long waiting time is likely not expected.

Tried both 2.6.1 and 2.7.3dev, it doesn't make a difference.

I have these advanced options set:
fullscreen_mode = fullscreen joystick_0_button_10 = action_key_space
joystick_0_button_4 = action_key_alt_left
joystick_0_button_5 = action_key_alt_right
joystick_0_button_6 = action_mouse_0_left
joystick_0_button_7 = action_mouse_0_right
joystick_0_button_8 = action_key_f1
joystick_0_button_9 = action_key_f2
joystick_1_button_10 = action_key_space
joystick_1_button_4 = action_key_alt_left
joystick_1_button_5 = action_key_alt_right
joystick_1_button_6 = action_mouse_0_left
joystick_1_button_7 = action_mouse_0_right
joystick_1_button_8 = action_key_f1
joystick_1_button_9 = action_key_f2
rtg_scanlines = 0

I'm attaching an fs-uae log in case it may be useful.

[FrodeSolheim]

Hi, problem 1: You cannot give FS-UAE options as arguments to fs-uae-launcher yet. So it isn't a bug or anything, it's just not implemented.

Problem 2. Is it always slow, or only just for a specific game?

There could be something interesting in the log(s), but your description indicates that the delay is in FS-UAE Launcher itself (?). If so, fs-uae-launcher.log.txt is probably more interesting...

It is randomly slow. What I mean is that if I relaunch the same game 10 times, it is 7 times slow and 3 times fast, randomly.
This happens on all the games I tried.
I'm attaching a launcher log as well.

This still happens, more noticeable on the first initial load, after that its not so bad but still takes a long time to show the WHD status bar.