Ccleaner taking up to 25 seconds to open

Today 16 March 2022 I updated to the latest version of Ccleaner and I have a pro license. It now takes what seems like forever for Ccleaner to open after clicking on its icon. Before todaay it would open as soon as I click on it.

What gives?

I've noticed the same as well. I have CCleaner premium and since the last update it's been taking a while to open.

Before that it worked without any issues.

Interesting because I had noticed CCleaner Pro becoming slower to open over the last few releases geting to 9 or so seconds for v5.90 to open, but 5.91 opens for me in about 3 seconds.

No Idea what the difference is and whether it's CCleaner, Windows, different user settings, different AV's/firewalls, or whatever else?

I've certainly done nothing in particular that could account for the change.

(Maybe Windows, or Windows Defender has?)

Just to add that I had been doing some testing yesterday and had reverted to an older CCleaner version.

When I opened CCleaner today it did take around 18-20 seconds for the window to come up - that was because it was doing an automatic update to v5.91 before opening.

Now it's done that update v5.91 takes about 3 or 4 seconds to open.