Cloudflare causes Wordpress scripts to timeout

May I ask if the origin host/server is capable of executing this?
Is it a dedicated server or shared hosting?

Cloudflare’s default timeout for HTTP(S) request is 100 seconds.
Timeout increases are only available to Enterprise plans.

What kind of request(s) does it send?
Is it Ajax or?
Are you doing them via cronjob, or WP-Cron, if so?