Component SML took long time for an operation (80ms)

[wettermann32]

Hi, my log is filled with this warning: Component SML took long time for an operation (80ms). I also have issues using i2c in parallel. Either one works, but not together. Any ideas why it would block so long? or what i could test?

[18:11:37][D][sml:078]: OBIS info:
[18:11:37][D][sml:084]: (xxxxxxxxxxxxxxxxxxxx) 1-0:96.50.1 [0xxxxxxx]
[18:11:37][D][sml:084]: (xxxxxxxxxxxxxxxxxxxx) 1-0:96.1.0 [xxxxxxxxxxxxxxxxxxxx]
[18:11:37][D][sml:084]: (xxxxxxxxxxxxxxxxxxxx) 1-0:1.8.0 [0x000000000xxxxxxx]
[18:11:37][D][sml:084]: (xxxxxxxxxxxxxxxxxxxx) 1-0:2.8.0 [0x0000000000xxxxxx]
[18:11:37][D][sml:084]: (xxxxxxxxxxxxxxxxxxxx) 1-0:16.7.0 [0x0000000000000xxx]
[18:11:37][W][component:214]: Component sml took a long time for an operation (0.08 s).
[18:11:37][W][component:215]: Components should block for at most 20-30ms.

uart:
id: uart_bus
rx_pin: 23
tx_pin: 18
baud_rate: 9600
data_bits: 8
parity: NONE
stop_bits: 1