Hello,
Well, I did a brief calculation on a website I use. I simulated the calculation to advance from level 100 to 105 distance (no additions related to loyalty and double xp event) and the results were; Offline: 1352 hours of training and Online with exercise weapons: 125 hours of training, so we can see a big difference in training time. There are other possibilities for online training, in which I wouldn't know for sure the advance time for skills, I don't know if there is any online tool capable of calculating this, but you can search for "online training for paladins on Telas". I apologize for the bad English and hope I was helpful in some way.
Sincerely, Duda Wall