Tacx flux s Smart and Zwift

Hello to everyone, I just changed my Cycleops smart for a tacx flux and the first impression is that the trainer requires much more effort than the road bike. my watts with tacx are the same as my assioma but my ftp on the road is 300w and the test with the tacx has given me 230

Does anyone feel the same? Can it be corrected in any way so that the sensations are more similar?

Than you very much