I used to teach guitar and I found that students would work extremely hard trying to make every chord perfect before  moving on to the next chord in the progression.  The end result is they learn their chords quickly but don't learn timing. Most beginner guitar players struggle with timing even after they've learned chords.

I would tell my students to 'grade' their timing on the the song (how well they kept in time) from 1 to 5 where 5 being perfect. AND then grade the quality of their chord changes 1 to 5 where 5 is perfect. I encouraged them to ALWAYS strive for 5 on timing at the expense of the score on their chords. What will happen is they will excel at timing and rhythm as they get better at chords.

So - as you learn a new song with new chords - don't worry about perfect fingering - focus on timing. The chords will come, but if you don't get the timing early, you will struggle to get it later.