According to this output:
Gzip Is Enabled
Original Size:
246.69 KB
Gzip Size (compressed):
31.35 KB
Compression %:
87.29% is compressed
HTTP Status:
200
Request Time:
0.7588 ms
Compression Time:
0.008 s
Content Type:
text/html
Server:
Apache/2.4.54 (Debian)
Everything should be fine.
But when I switch the button in the plugin settings I don't see any change.