Imunify360 evasion

So I’ve been dicking around on this WP site and I cant figure out if its got any vulns cause I keep getting blacklisted. Do any of you know decent firewall evasion techniques against an imunify360 WAF? I’ve spent the last 2 days flipping my IP over TOR to keep at it, but this FW is being a bitch and Ive come to the conclusion that I need to get better at firewall evasion LUL! Any help is appreciated.
PS: I've already tried uploading files larger than 10MB to bypass default max scan limits but the website doesn't allow files larger than 4MB to start with.