Erpnext very slow - new site without large data

Bench start
Go to Build > reports
First page load 1.5sec ( is very slow compired by localhost )
Second time load page is Normal ( open smooth )


# Only allow connections from localhost
bind-address =
mysqlx-bind-address =
character-set-client-handshake = FALSE
character-set-server = utf8mb4
collation-server = utf8mb4_unicode_ci
innodb_buffer_pool_size         = 256M
innodb_log_buffer_size          = 8M
innodb_log_file_size            = 8M

default-character-set = utf8mb4

Macbook i7 RAM 8G

Have you looked at network activity in your browser?

First page load always takes longer. There are serious quantities of CSS, HTML, JavaScript and fonts that must load and initialize.