Hi,
Sorry to hear about your bad experience with Loginizer.
When a user from any IP makes 3 failed attempts that IP is blocked for 15 minutes which is counted as 1 lockout. Then that IP can again attempt to login 3 more times then they are blocked again for 15 minutes. After 3 such lockouts that IP is blocked for 24 hours which is Extended Lockout. You can change the number of attempts to be allowed before lockout or how much time should the IP be blocked after failed attempts and after how many lockouts should the IP be blocked for Extended Lockouts.
You can change these settings from Brute Froce Page in Loginizer.
If you see multiple login attempts from the same IP you can also blacklist the IP.
Or as you said you see same URLs where the login attempt is being made, if the URL is for xmlrpc you can disable xmlrpc or rename the URL for xmlrpc or if it is for the wp-login.php page you can rename the login page or you can enable reCAPTCHA on login page and it will stop bots from attacking your site. These three features are in the Pro version.
If you need any assistance feel free to open a support ticket with us at :
https://softaculous.deskuss.com/open.php?topicId=16