The periodic certificate exchanges and contact with issuers to have certificates

[Morvarid798]

The periodic certificate exchanges and contact with issuers
to have certificates updated is bandwidth consuming and
scales badly

what does it mean scales badly?

[Dozy]

"scale" (verb) means to increase or decrease in size, in this case understood to mean increase. Therefore, "scales badly" means that it is difficult to increase the size of the system, in terms of numbers of users, numbers of transactions, etc.

[Morvarid798]

wooow, you describe it very good, thank you, it was so helpful.