The score you're getting from Equifax is not a Fico 8 score. EQ uses their own scoring module. A few months ago I too paid for Equifax's service. My EQ score was higher than my fico 8 but lower than my Vantage 3.0. After a little research I learned the EQ score is not a Fico 8 score.
After I found out EQ doesn't use fico, I canceled my subscription. TU monitoring uses Vantage 3.0. Ex uses Fico 8. If you want all three fico scores try CCT for $1 trial. Don’t forget to cancel before the end of the trial period. CCT is operated by EX.