The speedup when using Chowdren with Clickteam Fusion is about 7.7x (where the standard runtimes are also written in C++). Admittedly, I don't actually have any data for this, but I would expect the speedup when using Chowdren with Construct Classic to be similar. Do you happen to have a game made for Construct Classic? :)
Hey! Sorry, it looks like your mail got lost in the noise. I remember you had a very small budget for ports, and I'd like to point out that porting is a serious endeavour, requiring many work-hours and time on my part.
I think I need to spend some time to explain, just to set reasonable expectations for smaller developers.
If you were to do the port yourself, you can estimate a ballpark cost. In the most ideal situation, a port would take about one or two months to do. You would likely need to hire a senior engineer that has some knowledge of cross-platform development. If you look at the average salary of a senior engineer in your area, you could start approximating the budget for a port.
I get at lot of emails a day about Chowdren, both regarding Fusion and Construct. Ideally, I would be able to respond to everyone, but usually, I need to prioritize publishers or developers that have at least considered the above.
For developers who do not have a budget for ports, there is still the possibility of revenue share or recoup, of course. In that case, you need to have a strong case for your game, and why revenue would be able to cover the cost of porting instead.
I do not want to discourage anyone from contacting me, since if your game is excellent, I will definitely be in touch! However, I will have infinitely more time to spend on someone who have researched what porting entails, who have already had their game approved for release on consoles, and so on.