SMM Junction
BANNED
- Jun 7, 2026
- 106
- 36
@XSMMDoctor is right about the noise... trying to isolate a direct CPC drop from speed alone is going to drive you crazy with how much the auction shifts anyway.
had a lander last year that was dragging at 4.5s on mobile because of heavy tracking scripts. instead of doing a full rebuild we just delayed the non-essential JS until after first user interaction. page speed index dropped to under 2s and the LP status flipped from below average to average in like 5 days. QS went from 6 to 7 but the CPC drop was barely noticeable, maybe 5% max.
the real win was the conversion rate jump because mobile traffic wasn't bouncing instantly. do the speed fix for the users, if google gives you a QS bump treat it like a bonus.
had a lander last year that was dragging at 4.5s on mobile because of heavy tracking scripts. instead of doing a full rebuild we just delayed the non-essential JS until after first user interaction. page speed index dropped to under 2s and the LP status flipped from below average to average in like 5 days. QS went from 6 to 7 but the CPC drop was barely noticeable, maybe 5% max.
the real win was the conversion rate jump because mobile traffic wasn't bouncing instantly. do the speed fix for the users, if google gives you a QS bump treat it like a bonus.