You can try github develop version. Changes:
- you can customize dashboard directly from dashboard
- New panel - favourite graphs
- I killed few bugs

Version 1.6 released:
Add user setting directly on intropage (close/add panel, autorefresh, ...)
Add permissions (admin can enable/disable panel for all users)
Add Favourite graphs panel - you can add 2 graphs
Add option for change default page for users without console
Add detail panel of up/down/recovering hosts
Add detail panel of breached/triggered tholds
Fix error and warnings count in Analyse log panel
Fix ajax double displaying

Thanks,

I will test, I had to disable the dev version on my production server as it made the web end very slow.

It caused only slow intropage load or all Cacti is slow? Please try enable intropage debug, you will see what last long time?
How many hosts/ds you have in cacti?

The whole box it's load goes up.
I have put it in debug (version 1.6) and get back to you.

Is autorefresh enabled? If yes, how often?

Log attached (v1.6)

(cat cacti.log | grep DEVEL)

I have 68 devices right now and 2498 datasources

Thank you, please try enable debug on intropage -> display intropage -> bottom select -> choose enable debug

New panel will appear with information like:
thold_events: 0.25 || analyse_login: 0.01 | .....

It seems like slow analyse_db check. Try to disable this panel or change db check level between quick,fast, changed (console -> settings->intropage->Analyse MySQL DB)

Thanks, disabling the mysql panel did the trick.

It was already set to "Quick"

Try method "changed" it is good choice for Intropage with autorefresh enabled.

Thanks,

tried with Changed, but it's still the same, nearly unusable cacti.

Strange - I have bigger db (200 hosts/4500DS) and db check works fine between 1 and 2 seconds.
Maybe you have any problem with your database.

Try check DB with native mysql tools:
https://dev.mysql.com/doc/refman/5.7/en/mysqlcheck.html

And try to run mysqltuner - it could show you any problems.

New version (1.7) released:
Add Awesome icons (close, reload, show detail,...)
Add user permissions
Add default snmp community (public/private) check
Improve favourite graphs - you can set more than 2 graphs (now unlimited)
Improve ntp - add time difference
Fix blank login page if intropage in console is default page
Fix show/hide detail
Fix db check - Ok tables are reported as damaged if check level is "Changed"
Fix drag and drop
Fix sorting panels

Version 1.8 released:
Add admin alert panel
Add check for cacti and spine version
Add panel for Mactrack plugin (again)
Add panel for Top5 Mactrack sites
Add panel Maintenace alert
Fix number of errors in snmp default community test
Add test for extrems, trends - is thold plugin installed and running?
Fix PHP noticed if thold isn't installed
Fix Top5 display if no data
Change error/warning in analyse tree/host/graph
Better themes support