or ojalá aflojara un poco la soga

"Cut some slack"
cut someone some slack (American & Australian, informal)
to allow someone to do something that is not usually allowed, or to treat someone less severely than is usual. Officials have asked the Environmental Protection Agency to cut Utah some slack in enforcing the Clean Air Act.
See also: cut, slack, some

Cambridge International Dictionary of Idioms © Cambridge University Press 1998
cut someone some slack
to give someone additional freedom. I'm going to cut you some slack. Because it's the last day of classes, we don't have to talk anything serious today. If you and your kids don't agree about their futures, cut them some slack — explain your views, but don't try to force them to agree.
http://idioms.thefreedictionary.com/cut some slack

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Note added at 9 mins (2006-01-22 18:24:40 GMT)
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En esta pregunta monolingüe en inglés hay muchas (y buenas) explicaciones:

http://www.proz.com/kudoz/492701?float=1



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Note added at 11 mins (2006-01-22 18:26:37 GMT)
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También "me diera más libertad(es)".

cut/give (someone) some slack
Slang To make an allowance for (someone), as in allowing more time to finish something.
http://www.thefreedictionary.com/cut some slack

VF