Users answering CSAT surveys - removing extra mouse clicks

Our users are telling us that they are a bit frustrated of clicking to often when answering the CSAT.  They receive an email where they click how happy(or not) they are with the resolution of the ticket but then a webpage opens and they have to click Submit.  It should be enough to click the link in the email and if they want to submit a feedback then I would understand the meaning of this extra click.  People nowadays are always busy and we also want to find ways to make everybody‘s day a little bit more easier.  I would also think that we would get more feedback if this was easier.  Is this possible?