My parents got the Telegraph, mum still does, (who knows why, my Dad was Old Labour and Mum always voted Labour apart from Tory in '79 and SDP in '83. They said they liked the crossword
I therefore read it from when I was old enough (mid '70s) until I left home (mid '80s) and I've glanced at it ever since when visiting my Mum.
My impression is that it is not so blatantly the Tory house newspaper as it once was. In the eighties Thatcher could do absolutely no wrong in it's eyes, it went off the boil when Major took over and gradually started cosying up to Blair as '97 drew near.
Around the time the Barclays took over (2004), it reverted to conspicuous Tory support, but that may be coincidental as, by then, the general media love affair with Blair was over anyway.
Since around 1990 it has striven to become more populist and shake off it's rather stuffy image. To give you an idea, the only popular culture stories I remember it lowering itself to cover when I was young were Lennon's murder and Live Aid.
It's standards of journalism have also slipped.
So in answer to your question, IMO it's more right wing under the Barclays than it was in the '90s, but less so than it was in the 70s and 80s.