Thanks for the reply. I downloaded the program again and the symptoms are still there. After upgrading to 1.7.3 my download speed dropped by half.
Hi again,
Unfortunately it is likely that only minor improvements will be found. The proper way to address these performance issues is to replace the back-end code with a newer framework (rather than cobbling patches and workarounds together). This has been done a long while ago on the Patreon branch, but not the itch.io branch which is under legacy support only. If top speed and performance is absolutely important to you, I would humbly suggest trying the Patreon version, as it is vastly superior in many ways.