The lousy old 741 opamp was designed 48 years ago. Use a modern opamp instead that has a bandwidth of 100kHz or more.
To change the frequency of a Wien Bridge oscillator you must change both resistors at the same time.
My Wien bridge oscillator goes from 10Hz to 100kHz using a TL071 audio opamp that has low noise, low distortion and a bandwidth of 100kHz. Since it has Jfet extremely high impedance inputs I switch decades of frequencies with pairs of resistors that are 22k, 220k, 2.2M and 22M ohms and I change the exact frequency in each decade with a dual 365pF variable capacitor from an old AM radio.