As a chaser I never send faster than the activator, & if the activator is a novice at CW I will not only match their speed & maybe even leave bigger gaps if necessary, I will stay on the frequency & try my best to make sure they at least get a good QSO with me.
Many times I have heard QRS activators being called by a huge pile-up of chasers, some of whom are sending at twice their speed or even more. For someone new at CW, simply using the mode on the air is daunting enough, without a pile-up of QRK chasers to deal with!
I used to think that an activator could thin-out a pile-up by sending faster, but now having a bit of CW experience I know that is not the case. Actually sending slower is far more effective! The impatient chaser will lose interest if you do not work them within a couple of minutes, leaving the those patient enough to wait & work the activator at a speed they can read, to get the chase.
Sending faster than the activator is pointless, as the chances are that he or she cannot read you anyway.Also, If the activator is more comfortable with a full format QSO (ie Both callsigns beginning & end of each over with AR & KN or K at the end as appropriate) then show them the courtesy of working them in that format. For a beginner, each sucessful QSO is a real achievement, & whilst a full format QSO may seem to take a long time at 12-15WPM for those comfortable at 35WPM plus, every successful QSO for a learner inspires them to use the mode again.
If a novice CW operators first experiences on the air are marred by bad operating by chasers, they may simply decide to give up the mode completely, which in the end could mean less CW activators for people to chase. I was very fortunate in that my first experiences as a CW activator were with some very good & friendly CW operators so I stuck with the mode.
When I do get the chance to play radio now, it is mostly CW.
Best of luck to any just starting out, stick with it, it is worth it in the end
Thanks & best 73,