Yes. To give you an idea, I went from London to King's Lynn to do a trial. The prosecution couldn't proceed so the case was stood out of the list (adjourned). My fee? £35. This was the 'case no non-effective' fee on legal aid. I had , of course, spent some hours the day before, preparing for trial. Inevitably, I could not do the trial when it was effective; it rarely happens that counsel can.
Now, the fees for ordinary trials have gone down considerably , in real, sometimes monetary, terms, since then. The costs to counsel, in travel, in rent to chambers, and everything else, have gone up. Only a fool, or a rich person, would undertake criminal legal aid work now, as counsel, and solicitors who did it have deserted in droves.
The government, of course, and the press, highlight what seem high fees in lengthy and complex trials. That is like saying that all actors get paid like George Clooney or Meryl Streep.