MacBook comes up with low memory

First I suggest that you completely remove any "cleaner" apps, like Clean My Mac" from your notebook. These apps tend to cause more issues, than resolve them, and are completely unnecessary

Then run an EtreCheck report, and optionally, post it here if you need assistance with interpreting the results.

Ref: Using EtreCheck to Troubleshoot Potential… - Apple Community

It should be possible to upgrade the memory, but we would need to know the exact model of this notebook. To get it, click on the Apple logo in the upper left-hand side of the macOS menubar. Then select About This Mac.

Alternatively, and in the mean time, run either a single or just a few apps at a time to prevent the memory "overload."

Not exactly what was meant by post your results, at least you could have rotated the photo before posting it.

You appear to have a MacBook Pro instead of a MacBook. In which case you should consider upgrading your RAM from 4 GBs to at least 8-16 GBs.

4 GBs is not enough for realistic performance.

The report that you provided, page 5, identifies your Mac as a MacBook Pro. The 1st page of the same report should identify the exact model of your MacBook Pro.

See:

As Lanny has identified from the report, the issue is directly related to the limited amount of RAM that your notebook has. Notice the "Swapped Used" item? It should be zero, or very close to zero. Instead, as you can see, it read 1.51. GB. What this indicates is that the apps that you are running do not find enough RAM memory to use and have to rely on swapping out to the notebook's hard drive. This slows things down significantly.

Related to this, note the Read/Write values (93 & 85 MB/s) are relatively low, but typical for of older HDDs, compared to SSDs.

This leads to, if you want to increase the performance of this notebook, you basically have two choices:

1. Add more RAM & replace the system drive with an SSD, or
2. Get a newer notebook with both of these already equipped.

The report you submitted says, "MacBook Pro" at the top of the page. There are no 2012 MacBooks, there are only 2006-2010 and 2015-2017 models.

Click on the Apple menu's "About This Mac," to properly identify your Mac model.

And, it's "Lanny," not "Larry."