Hi Markus,
The example query related to films returns 55 results, while on the official endpoint it returns 128.
This turned out to be due to an incomplete implementation of LANGMATCHES, which I have now fixed in the query engine (https://github.com/LinkedDataFragments/Client.js/commit/09c829d07).
Thanks for reporting!
The sample query took 55s on my machine (producing only half of the results)
I blame latency here; the server seems to be located in San Francisco. Fortunately, and in contrast to SPARQL, this can be easily solved for TPF by using any of the many available HTTP cloud caching options. Alternatively, HTTP/2 can solve this.
Best,
Ruben