>can are we fast migrate mails from another mail services like a gmail?

The migration speed depends on several factors, such as:

• The number of users you’re migrating.
• The migration start date you select—the longer the time frame, the longer a migration takes.
• The number and size of items being migrated.

If you’re not migrating from a Local network, you also need to consider:

• The performance of the source server you’re migrating from and To
• The network's data transfer rate.
• Latency between Google Workspace and the carbonio server.

Its also depends on Google Workspace bandwidth limits

>can are we protect login from different ip adresses like a gmail? for example, if someone login frow strange ip adress, we will take mail notification.

As far i know, enable 2FA will help to protect the account, here is the carbonio auth guide hope you will find it interesting