The Dutchman was sacked as Eagles boss this morning (Monday) after four defeats in his four Premier League matches, with no goals scored and seven goals conceded.
The Eagles have failed to score in their four league matches under De Boer.
"(The future) is for other people to decide but while I'm the manager of Crystal Palace I will give 100 percent".
"It always takes time, you mustn't panic suddenly", said the Dutchman, who lasted just 85 days as coach of Italian club Inter despite his positive track record with Ajax.
"For Frank de Boer to come from the Eredivisie to the Premier League was a big jump, but they knew they were bringing in a man with no Premier League experience", he said on talkSPORT.
Against yet another loss, however, Palace have to consider that this was an improved performance with, crucially, De Boer having listened to the concerns raised with him over his team selection and tactics. They went back to a back-four, which looked good, and bar some finishing and because of fantastic keeping, it would have turned out well for Palace.
De Boer continued to emphasise the importance of time, that if given it, the players will adjust well to his philosophy: "I want players that recognise what they have to do in certain situations".
The 70-year-old last managed in the Premier League with West Brom before leading the Three Lions at Euro 2012 and he has been tipped to sign a two-year deal at Palace.