I have had my Levo for 5 years now, and the motor power was noticeably reduced with every firmware update - and when finally it needed a replacement motor (after nearly 4 years), the power was even less.
Of course these power reductions were intentional, in order to lengthen motor life, but it...
I prefer Hybrid Assist as well. The "feel" is good, but as expected the maximum capability is less than my Turbo Levo - however I usually ride the TSDZ2 eMTB on less technical trails (partly because of the reduced ground clearance), which I would never use Boost on the Levo on anyway.
Some previous discussion about this, but mostly about grips, bar angle, fork setup, tyre pressure etc - but none of it explains why it happens more on eMTB's. My theory is that because you don't put as much force downwards into the pedals when riding eBikes compared to analogue bikes, the...
I had exactly the same issue with my 2019 Levo a couple of years ago - initially the battery cable was replaced but to no effect, so then they gave me a new TCU, and it's been fine ever since.
I also have a 2019 Levo, which finally needed a new motor a couple of months ago - and the new motor is definitely noisier than the original one . . . not an unpleasant noise, but slightly annoying nonetheless.
In some respects an eBike mid-motor is the equivalent of the Bottom Bracket in an Analogue Bike - it is treated as a single component which is specifically warranted for 4 years (Specialized don't repair Brose Motors, they replace the whole unit).
If the Bottom Bracket of an Analogue Bike...