Hi there Zorian,
Though I have had zero personal experience with Luxcore, I have been following up others’ reports on it’s capabilities and performance. By those accounts it seems to me that the time you mention is excessive, especially with the hardware, the medium resolution and the denoising and I think you may not be optimizing. There will be others to support or correct me and I say this only to help!
Maybe try to separate test stages: render / denoise / compose, to give a clearer testing ground?
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