The pacey winger left Spurs in January.
Crystal Palace's Andros Townsend
The 25-year old left Tottenham for Newcastle United in January and produced some much-improved displays for the Magpies despite their eventual relegation.
He told the Advertiser: "At Tottenham when I was playing, I wasn't playing well enough. I'm not one that cries 'I wasn't given the game time, I wasn't given the chances'.
Tottenham's Andros Townsend (L) in action with Gokhan Tore
"I was given the game time - I just wasn't playing well enough. It made me realise when I went to Newcastle and started playing well, just how bad I was playing for Spurs. Maybe it is just a change of scenery I needed. I went to Newcastle and started flourishing again.
"I got my appetite back and playing at a level I know I'm capable of. I know now I wasn't just a flash in the pan in 2013 and that I'm good enough to play in the Premier League. Hopefully I can show it again."
The England international rose through the Spurs academy and into the first team, with his pace and directness suggesting a bright future at White Hart Lane.
He struggled for consistency however, and Tottenham fans became frustrated at his tendency to always opt for the shot rather than provide for his team-mates in better positions.
England's Danny Rose and Andros Townsend during training
Townsend always appeared to be hampered by the need to constantly impress, due to his failure to nail down a starting spot under four different Spurs managers.
His improved displays at Newcastle last season suggests he will thrive when given more responsibility and he will hope to continue that form at Crystal Palace this campaign.
Mauricio Pochettino’s system is notoriously demanding and while Townsend wasn’t a good fit for this new-look Spurs team, he has proven himself as a more than capable Premier League player.