LTM Analytic profile "cookie secure attribute"

We have setup in our production environment an analytic profile. For collected metrics we use the option “user sessions “ : “Cookie secure Attribute” = ”Always” and tiemout=5 And then put this analytic profile on 10 VIP’s.

Can you please advise on the impact of using the “Cookie secure attribute” in an analytic profile ? and in case of heavy load ? Platform : BIG-IP 11.4.1 / Viprion VPR-C2400 with 16G of RAM.

Thanks in advance,