This is for the anime not the show. Goku admits he was holding back against Frieza. That includes the moment Frieza first went 100%, and even the Kamehameha/Nova strike struggle that everyone keeps believing that they were even. Goku was simply testing out how strong Frieza became in that form and to buy time for Gohan and the rest, to which he said was disappointed. Frieza even suspected Goku was merely stalling to give his friends and family time. I'd say its a given that Goku wasn't focused on Frieza at all until their final fight. I DO NOT OWN THE RIGHTS!!! THESE VIDEOS ARE PUT UNDER THE FAIR RIGHTS ACT FOR NON-PROFIT PURPOSES ONLY. DRAGON BALL Z IS OWNED BY FUNIMATION TOEI ANIMATION FUJI TV AND AKIRA TORYAMA.