Golf ball compression is important because it affects the distance and control that you will gain on a golf shot. Your ability level will determine which kind of golf ball you will get the best feel and distances with.
Firstly, on the low end of the spectrum it is possible to find low compression balls that create long distance if you have a slower swing speed. On the compression chart, these balls would often be rated between 30-70 and are ideal for beginner golfers or senior golfers. An example of a low compression golf ball in this category would be the Callaway Supersoft.
Yet at the other end of the spectrum, you have high compression balls which mean you would have to strike the ball with more speed to achieve the same kind of distance.
These types of balls, however, give the golfer more control over their shot, especially with their faster club head speeds that they are generating. These balls may be rated greater than 70 on the compression chart and are ideal for more experienced golfers. An example of a higher compression golf ball is the Callaway Chrome Soft and offers a direct comparison to the Supersoft. You can view more about the differences and similarities between these golf balls here.
A good rule of thumb which can be applied to knowing your compression level, is that golfers with a club head speed of 70mph should use a 70 Compression Ball. A golfer with a club head speed of 80mph should use an 80 Compression Ball and those with speeds of 90mph should use a 90 Compression ball with 100mph swing speeds indicating the use of a 100 Compression golf ball. By using a suitable golf ball you can make sure that you increase your average golf ball speed.
In order to get the maximum distance possible out of a golf ball, it must be fully compressed. This is when the ball will be half flattened upon impact due to enough force being applied to maximize the compression.
Golf Ball Compression: What Is It? [Complete 2020 Guide & Chart] (reachpar.com)
Is that based on the wide variety of swing speeds?