Very beautiful performance - particularly in the prelude where you sustain good tone/colours, and the voices are very clear. I think you seem to really understand the "whirlwind-like" concept of the triplets searching through all of the harmonies.
Thanks for that, dubya! I don´t know, if I can agree to the "whirlwind"-idea in that relatively slow and complaining prelude, but I second the imagination of "searching through all of the harmonies", which is something typic for Bach here and there. I love that.
Your fugue, in my opinion, is still a bit too polite - particularly when the second (dotted) subject/theme appears, it can have a bit more presence to be in contrast with the material from before. In general, the major build-up phrases you play very beautifully but I think could have more weight and have a bit of appassionato so that the fugue doesn't become one long and flowing piece, but rather collection of ideas with so many themes running together at once to highlight the struggle.
That´s a nice suggestion for an interpretation. I could imagine it sounds convincing, if it´s done well! I personally had another idea (this time) for my interpretation, more a soft and complaining one, as a continuation of the expression of the prelude. But I appreciate such ideas and inspirations. Thank you!