LR Classic CC 7.0.1 Still Slow

OBE LR CC/Classic.  DO NOT UPGRADE or PURCHASE.

Hello, I  have seen major performance degradation since upgrading to Lightroom Classic 7.0.1 ala Mac Sierra 10.12.6.  Not even going to post me machine specs here, because I can confidently say they are adequate.

I'm a real estate photographer, and I've been a pro user since Lightroom 3.  The most prominent increase in performance I noticed was the ability to create many HDR's at once.  Better memory allocation to that task I suppose.  However, overall the product has more degradations than improvements.  I've been working all weekend to kick out a simple shoot that generally takes six hours to produce. Most of the time wasted trying to get LR to work as it should.

Here is a list of performance issues I've experienced.

1. Import issues:  File corruption, and very degraded speed.

2. Micro Lagtime between mouse movement and cursor on the screen, while in develop mode.

3. Inconsistent behavior when creating panos and hdrs.  The new file created sometimes ends up at the end of the files sometimes placed with the originals.

4. WB/Temperature seems off.

5. Lens correction always needs more correcting.

6. Is it me or has anyone else notice more noise issues than usual?

7. Just switching images in the filmstrip (dev. Mode) is painfully slow.

8. The forums are reporting the same info. But Adobe is taking little action to improve.

NOW may be the time to forever ditch LR.  Adobe is now on my official "It Sucks" list.

I had a lot of sludge like slowness after upgrading but then decided to wipe the camera raw cache and to have the machine build standard previews for everything. That took about a full day for my >100k images and now my speed is back. Not really any faster than LR2015 was but at least not dreadfully slow with constant beach balling. My main machine is a 2012 MacBook Pro with i7 processors and 16 gigs internal and a 1TB SSD so no speed demon but has worked very well for many years.

Unfortunately, I have the same situation.  Classic is running painfully slow on my Macbook (2.8 GHz i7, 16GB ram).  I downloaded the 2015 version and did a side by side comparison with Classic.  The differences was obvious.  With Classic my computer is constantly churning away, frequently shows the dreaded spinning beach ball and has lag that is driving me crazy.  Using LR 2015 with the same photo and the same tools has some lag but the computer doesn't sound like it's going to take off and there are no spinning beach ball.

This is a big disappointment.  I like some of the new features in Classic but my workflow is more like work-sludge.

I'm sure some users are happy but I'm not one of them.

My experience is that since the upgrade it's so slow as to be almost unusable. I have a similar set up to you. Adobe - get your act together.