nagkumarNot sure if you are trying the tool or using it for a while since you mentioned decade in the post and the userid says "New Contributor".
If you are using it for so long, definitely the post should find in the right forum.
I believe the Smartbear team do listen from customers from time to time or when the user finds issues and try to find solutions or come up their investigation or an internal issue ID when they accept the issue and no solution available at that moment.
Hope your issues to be addressed as well.
Like David suggested, one can change the jvm options depending on the usage like how many open projects and how big is each project. The machine has 24gb doesn't mean, ReadyAPI can use all of it unless it is configured.
The suggestion is that close unrelated or unused projects all the time and keep open the one project which is currently being worked on.
If project is too big, consider splitting.
Always use command line to execute the tests, and limit UI to design and try it.
With each release, lot of features being added, back log issues fixed. And as a software, possibility of some new issues. With that, the software foot print goes bigger. But its one time download and few extra mbs doesn't matter much or concern.
If someone is facing an issue, then usually try to find solution by all means, by posting in different QA forums, such as stackoverflow, here, by contacting customer support etc.
Many even use free tool for the features they needed and happily use it too. With a bit of groovy, possibilities are unlimited.
With ReadyAPI, one would get premium features at the cost, but easiness and more productive. And not forget the access to customer support services and free educational trainings.
Some times the URLs do broke. I read it as there are things updated as part of it broke, but it may be human error. I usually report to Admin when I notice such things. But one can report in forum too. The forum is much vibrant and active.
Are there any of your issues posted here and not addressed?
Hope you can post if any unresolved issues and hope those get addressed soon.