Without links in just 30 days traffic increases by 50%

SEO promote the online store of bicycles and sports goods.
In just 30 days, there was a 50% increase in the visibility, and also a weekly site visibility higher than it was in the "season" (with the loss of about 400 links from the previous contractor)
The work done:
Audit
Internal optimization
TZ for optimization
Autogeneration
The Meta-Tags
- new texts (exposed only about 15% of the planned)
Working with goods cards
Removal of duplicates by target
Removing duplicates of pages
Robots and Sitemap
and so on.